Hook Reference › O. Mustad & Son Hooks › Mustad 7959 A — Round Hooks

O. Mustad & Son 7959 A

Round Hooks1925 or later (sales card) I

Evidence reviewed October 8, 2026. Marks: P photographically · V verified · I inferred · E estimated · S speculative What they mean

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Summary

Mustad Qual. 7959 A is a round hook whose shank carries a crank, a deliberate sideways step, near the eye end. The model is known here only from one sales card and the two hooks tied to it.

Its production period, measurements and full size range are not yet documented.

Photographic record

3 photographs

Orange Mustad Key Brand sales card with three gold-printed labels and four hooks tied on; the 7959 A label and two hooks stamped 1/0 and 9 are at the right.
IMG-1Mustad — New entry — image 1 Key Brand sales card for Mustad Qual. 3989, 3990 and 7959 A. The 7959 A hooks, sizes 1/0 and 9, are tied on at the right above their label.

How to identify it

On the Key Brand card, the 7959 A label differs from the 3989 and 3990 labels beside it in three phrases. It reads Mustad-Round Hooks rather than Mustad-Kendal Round Hooks. It reads Forged Straight Ringed rather than T, d. tapered eye or T. d. ball-eye, and Cranked shank rather than With kink in middle of shank.

Loose hooks are harder to place. A forged hook with a straight ring eye, a round bend and a single crank in the eye-end third of a long shank matches the recorded specimens P, but shape alone cannot confirm the quality number I.

Technical profile and measurements

Features of the model, as recorded
FeatureRecordedEvidence
EyeBall Eye, Straight / Inline
Show noteHide note

Labeled Ringed and Straight. Both specimens show a small closed ring in line with the shank, seen as a narrow loop in side view P. Wire form not visible.

LBL-10OBS-1OBS-8
WireStandard, Forged
Shank2X Long — Kinked
BendRound / Kendal, Standard gap
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Labeled Mustad-Round Hooks. Both specimens show a smoothly rounded bend with no corner, the point leg returning roughly parallel to the shank P.

LBL-10OBS-2OBS-9
PointHollow Point
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Barbed. On both specimens the barb is slender, sharply cut and stands clear of the point P.

OBS-4OBS-11
FinishBronzed — stated on packaging
Show noteHide note

Bronzed (label). The 1/0 specimen is uniform olive-brown with a soft sheen; the size 9 specimen is darker, blue-gray to near-black P.

LBL-10OBS-6OBS-13

The label calls the shank both Ex. long and Cranked, and gives no X figure for its length. A crank is a deliberate sideways step in the shank. On both recorded specimens it sits about two thirds of the way from the bend top toward the eye P.

At the crank the shank shifts away from the point side by several wire diameters, then runs straight and parallel to the eye P. On the 1/0 specimen, parallel edge highlights along the bend and shank give the forged wire a flat-faced look P.

Measurements

Per size, with how each dimension was taken
SizeOverall lengthShank lengthGap widthBend depthWire diameterWeight
1/0Specimen S1——————
9Specimen S2——————
How hook dimensions are measuredA hook outline with dimension lines for overall length, shank length, gap, bend depth, and wire diameter.Overall lengthShank lengthGapBend depthWire diameter
Overall length
Eye to the farthest point of the bend.
Shank length
Eye to the start of the bend.
Gap
Point to shank, at right angles to the shank.
Bend depth
Shank to the bottom of the bend.
Wire diameter
Across the wire, measured by caliper where possible.
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Specimens, packaging, and label

This record documents 2 specimens. Each describes itself only; none stands for every example of the model.

Orange Mustad Key Brand sales card with three gold-printed labels and four hooks tied on; the 7959 A label and two hooks stamped 1/0 and 9 are at the right.
Open full size
Close view of two Mustad 7959 A hooks tied to an orange card, stamped 1/0 and 9, each with a straight ring eye and a crank near the eye end of the shank.
Open full size

S1 · Size 1/0 on Key Brand sales card

Size
1/0 (printed on the label)
Container
Card
Hook condition
Sound and clean with no visible rust; a few fine scuffs near the bend shoulder and along the shank (P).
Packaging condition
Very Good — light wear, fully legible
Wear
card face, full width at the height of the hook tops: Faint straight horizontal line across the card; reads as a crease or score line. LBL-17
Wear
Qual. 7959 A label, bottom spec line between shank and Cranked: Small translucent tan stain touching the C of Cranked. LBL-18
Wear
Qual. 3990 label, right edge: Label edge slightly lifted, casting a shadow on the card. LBL-19
Wear
Qual. 3989 label, right of the T, d. tapered eye Bronzed line: Small scuffed spot on the label surface. LBL-20
Wear
card edges, lower left corner and upper right edge: Scuffed lower left corner and a small pale chip on the right edge near the top. LBL-21
Measured
size 1/0
Photographs
IMG-1IMG-2IMG-3

Tied on with buff twisted thread, which passes through the eye, above the Qual. 7959 A label beside S2; assigned to that label by position (probable).
Card wear: a faint horizontal crease or score line across the face, a scuffed lower left corner, a small chip on the right edge, a lifted edge on the 3990 label, and small stains on the 3989 and 7959 A labels.

What the label says

LBL-1 printed · card, top centre header from IMG-1
O. Mustad & Sön - Fishhook Manufacturers
Established 1832
Oslo - Norway
LBL-2 trademark · card centre, faint mauve background print behind hooks from IMG-1IMG-2
KEY BRAND
LBL-3 trademark · Qual. 3989 label (left), upper left around key emblem from IMG-1
Key
Brand
LBL-4 printed · Qual. 3989 label (left), main text block from IMG-1
O. MUSTAD & SÖN
MANUFACTURERS
OSLO - NORWAY
Qual. 3989
Hollow Point
Mustad-Kendal Round Hooks
T, d. tapered eye Bronzed
Long shank
With kink in middle of shank
Made in Norway
LBL-5 printed · Qual. 3989 label (left), lower left margin from IMG-1
100
No.
LBL-6 trademark · Qual. 3990 label (centre), upper left around key emblem from IMG-1
Key
Brand
LBL-7 printed · Qual. 3990 label (centre), main text block from IMG-1
O. MUSTAD & SÖN
MANUFACTURERS
OSLO - NORWAY
Qual. 3990
Hollow Point
Mustad-Kendal Round Hooks
T. d. ball-eye Bronzed
With kink in middle of shank
Made in Norway
LBL-8 printed · Qual. 3990 label (centre), lower left margin from IMG-1
100
No.
LBL-9 trademark · Qual. 7959 A label (right), upper left around key emblem from IMG-1IMG-2IMG-3
Key
Brand
LBL-10 printed · Qual. 7959 A label (right), main text block from IMG-1IMG-2IMG-3
O. MUSTAD & SÖN
Manufacturers
OSLO - NORWAY
Qual. 7959 A
Hollow Point
Mustad-Round Hooks
Forged Straight
Ringed Bronzed
Ex. long shank Cranked shank
Made in Norway
LBL-11 printed · Qual. 7959 A label (right), lower left margin from IMG-1IMG-3
100
No.
LBL-12 stamp · card face, left of the Qual. 3989 hook from IMG-1
6
LBL-13 stamp · card face, inside the bend of the Qual. 3990 hook from IMG-1
3/0
LBL-14 stamp · card face, between point and shank of S1, above Qual. 7959 A label from IMG-1IMG-2
1/0
LBL-15 stamp · card face, left of S2 below its point, above Qual. 7959 A label from IMG-1IMG-2
9
LBL-16 pencil · card face, just above the top right of the Qual. 3989 label from IMG-1
[curved tick-like grey stroke, no characters]
Trademark
An upright bit key with an oval, lobed bow and a stepped bit, printed in gold between the words Key and Brand; the same key appears large in pale mauve behind the card center with the words KEY BRAND across it.
As entered on the specimen record
Key
Brand
O. MUSTAD & SÖN
Manufacturers
OSLO - NORWAY
Qual. 7959 A
Hollow Point
Mustad-Round Hooks
Forged Straight
Ringed Bronzed
Ex. long shank Cranked shank
Made in Norway
100
No.
Layout
Printed in gold on a white paper label pasted at the lower right of the card.
Key emblem at upper left with Key above and Brand below; 100 over No. in the lower left margin; main text block to the right.
Printed marks
Card header:
O. Mustad & Sön - Fishhook Manufacturers
Established 1832
Oslo - Norway
Stamped on the card beside the hook: 1/0
Later marks
Pencil: a curved tick-like gray stroke above the Qual. 3989 label, no characters.
Orange Mustad Key Brand sales card with three gold-printed labels and four hooks tied on; the 7959 A label and two hooks stamped 1/0 and 9 are at the right.
Open full size
Close view of two Mustad 7959 A hooks tied to an orange card, stamped 1/0 and 9, each with a straight ring eye and a crank near the eye end of the shank.
Open full size

S2 · Size 9 on Key Brand sales card

Size
9 (printed on the label)
Container
Card
Hook condition
Rust-brown corrosion spots and a rough, pitted patch on the top of the bend, with scattered spots along the upper shank; point, crank and eye clean (P).
Packaging condition
Very Good — light wear, fully legible
Wear
card face, full width at the height of the hook tops: Faint straight horizontal line across the card; reads as a crease or score line. LBL-17
Wear
Qual. 7959 A label, bottom spec line between shank and Cranked: Small translucent tan stain touching the C of Cranked. LBL-18
Wear
Qual. 3990 label, right edge: Label edge slightly lifted, casting a shadow on the card. LBL-19
Wear
Qual. 3989 label, right of the T, d. tapered eye Bronzed line: Small scuffed spot on the label surface. LBL-20
Wear
card edges, lower left corner and upper right edge: Scuffed lower left corner and a small pale chip on the right edge near the top. LBL-21
Measured
size 9
Photographs
IMG-1IMG-2IMG-3

Tied on above the Qual. 7959 A label beside S1, on the same card; assigned to that label by position (probable).
Relative to its length, the gap looks narrower than on S1 P.

What the label says

LBL-1 printed · card, top centre header from IMG-1
O. Mustad & Sön - Fishhook Manufacturers
Established 1832
Oslo - Norway
LBL-2 trademark · card centre, faint mauve background print behind hooks from IMG-1IMG-2
KEY BRAND
LBL-3 trademark · Qual. 3989 label (left), upper left around key emblem from IMG-1
Key
Brand
LBL-4 printed · Qual. 3989 label (left), main text block from IMG-1
O. MUSTAD & SÖN
MANUFACTURERS
OSLO - NORWAY
Qual. 3989
Hollow Point
Mustad-Kendal Round Hooks
T, d. tapered eye Bronzed
Long shank
With kink in middle of shank
Made in Norway
LBL-5 printed · Qual. 3989 label (left), lower left margin from IMG-1
100
No.
LBL-6 trademark · Qual. 3990 label (centre), upper left around key emblem from IMG-1
Key
Brand
LBL-7 printed · Qual. 3990 label (centre), main text block from IMG-1
O. MUSTAD & SÖN
MANUFACTURERS
OSLO - NORWAY
Qual. 3990
Hollow Point
Mustad-Kendal Round Hooks
T. d. ball-eye Bronzed
With kink in middle of shank
Made in Norway
LBL-8 printed · Qual. 3990 label (centre), lower left margin from IMG-1
100
No.
LBL-9 trademark · Qual. 7959 A label (right), upper left around key emblem from IMG-1IMG-2IMG-3
Key
Brand
LBL-10 printed · Qual. 7959 A label (right), main text block from IMG-1IMG-2IMG-3
O. MUSTAD & SÖN
Manufacturers
OSLO - NORWAY
Qual. 7959 A
Hollow Point
Mustad-Round Hooks
Forged Straight
Ringed Bronzed
Ex. long shank Cranked shank
Made in Norway
LBL-11 printed · Qual. 7959 A label (right), lower left margin from IMG-1IMG-3
100
No.
LBL-12 stamp · card face, left of the Qual. 3989 hook from IMG-1
6
LBL-13 stamp · card face, inside the bend of the Qual. 3990 hook from IMG-1
3/0
LBL-14 stamp · card face, between point and shank of S1, above Qual. 7959 A label from IMG-1IMG-2
1/0
LBL-15 stamp · card face, left of S2 below its point, above Qual. 7959 A label from IMG-1IMG-2
9
LBL-16 pencil · card face, just above the top right of the Qual. 3989 label from IMG-1
[curved tick-like grey stroke, no characters]
Trademark
An upright bit key with an oval, lobed bow and a stepped bit, printed in gold between the words Key and Brand; the same key appears large in pale mauve behind the card center with the words KEY BRAND across it.
As entered on the specimen record
Key
Brand
O. MUSTAD & SÖN
Manufacturers
OSLO - NORWAY
Qual. 7959 A
Hollow Point
Mustad-Round Hooks
Forged Straight
Ringed Bronzed
Ex. long shank Cranked shank
Made in Norway
100
No.
Layout
Shares the Qual. 7959 A label with S1.
Printed marks
Stamped on the card beside the hook: 9

Care of this specimen: Keep the card dry to limit further rusting on the bend.

Pattern history and manufacturer context

Dating

The card header and all three labels print Oslo - Norway.
The city took the name Oslo on 1 January 1925 V, so the card was probably printed in 1925 or later I.
No later limit is established.

O. Mustad & Son — Mustad registered a key design as a United States fish-hook trademark in 1908, claiming first use in February 1908, and filed a US mark using the words KEY BRAND in 1939 V. Read the maker’s history →

Use

  • Other

Modern equivalents and related hooks

Best matchRelated by Attribute

Computed automatically from catalog data — updated as new hooks are added.

SilhouetteHook ModelMatchAnalysisCompare
3990 No. 3/0 — Kendal Round Hooks84%Matches: Bend, Shank, Wire, Gap, Eye +5 moreDiffers: Eye Orient.: Straight / Inline vs Turned Down; Forging: Forged vs Round; Application: Other vs StreamerCompare
3989 — Kendal Round Hooks82%Matches: Bend, Shank, Wire, Gap, Point +4 moreDiffers: Eye: Ball Eye vs Tapered Eye; Eye Orient.: Straight / Inline vs Turned Down; Forging: Forged vs Round +1 moreCompare
3842 No. (unspecified) — Mustad 384273%Matches: Shank, Wire, Gap, Eye, Eye Orient. +4 moreDiffers: Bend: Round / Kendal vs Sneck; Finish: Bronzed vs Blued; Forging: Forged vs Round +1 moreCompare
9673 No. 8, No. 14 — Mustad 9673 silhouette9673 No. 8, No. 14 — Mustad 967373%Matches: Shank, Gap, Eye, Eye Orient., Point +4 moreDiffers: Bend: Round / Kendal vs Viking; Wire: Standard vs Heavy (1X Heavy); Shank Feat.: Kinked vs PlainCompare
37120 No. 6 — Carlisle Hooks silhouette37120 No. 6 — Carlisle Hooks72%Matches: Eye, Point, Finish, Offset, Application +2 moreDiffers: Bend: Round / Kendal vs Carlisle; Shank: 2X Long vs 4X Long; Wire: Standard vs Heavy (1X Heavy) +3 moreCompare

Sources, open questions, and record notes

Sources & Documentation

This specimen and its packaging — photographed, 3 images
Supports: eyecountry of originsub brandsize documentedquantity per packageis snelledbendbarbfinishmeasurements availablemeasurement methodmeasurement notesdating rangepackagingmeta titlemeta descriptionprimary search termssummarytechnical notesidentification

Entry last updated October 8, 2026. Entries are updated as new specimens, measurements, or documents come to light.