Mustad-Viking Hooks hook silhouette
Hook Reference › O. Mustad & Son Hooks › Mustad 9238 — Mustad-Viking Hooks

O. Mustad & Son 9238

Mustad-Viking HooksRecorded box: 1925 or later 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 9238 is a forged single hook made by O. Mustad & Sön of Oslo, Norway, and sold as Mustad-Viking Hooks. The box label specifies a reversed hollow point, a turned-down (“T. d.”) tapered eye, nickel plating, and “2 extra strong” wire P.

The record rests on one box of size 1 and a hook photographed with it.

Photographic record

2 photographs

Box lid label reading O. Mustad & Sön, Oslo - Norway, Qual. 9238, Hollow Point, Mustad-Viking Hooks, with a gold key trademark and a gold rosette border; size No. 1 marked in violet ink.
IMG-1Mustad — New entry — image 1 Lid label of a box of Mustad Qual. 9238 Mustad-Viking Hooks, No. 1 (P).

How to identify it

On the recorded box, the model number follows “Qual.” on the lid label, and “Mustad-Viking Hooks” is printed in red below “Hollow Point” P. The lid also carries the Key Brand trademark at upper left P.

The size is marked in violet ink after the printed “No.” rather than printed with the label P. To confirm the reversed point on a loose hook, view it from above or head-on; a side view does not show the offset.

Technical profile and measurements

Features of the model, as recorded
FeatureRecordedEvidence
EyeTapered Eye, Turned Down
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Closed ring eye turned down below the shank line. On the size 1 specimen the loop wire looks slightly thinner than the shank, and its end closes against it P.

OBS-1IMG-2
WireStandard, ForgedCMP-3LBL-5SRC-2CMP-3 compared with 215 catalogued hooks classified Standard
ShankShort (1X–2X Short) — Plain
BendViking, Wide gap, Offset / kirbed
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Broad, even bend, nearly upright at the rear, turning forward into a long straight point section that angles slightly up toward the shank P.

OBS-2IMG-2
PointHollow Point
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Single slender, raised barb on the inner face of the point, its tip toward the bend, set well back from the point tip P.

OBS-4IMG-2
FinishNickelled — stated on packaging
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Bright, highly reflective silver-grey finish over the whole size 1 specimen, with no discoloration P.

OBS-6IMG-2

Forging flattens the sides of the shank and bend to strengthen the hook V. The size 1 specimen shows broad flats with defined edges along the rear shank and through the bend, where its side-view width is greater than near the eye P.

A reversed point is set sideways, out of the plane of the shank.

“2 extra strong” follows the X-strong convention: wire heavier than standard for the hook size, often equal to the next size up, though makers apply it unevenly V. Traced against the site catalog, the size 1 specimen’s wire thickness falls nearest the standard range.

Measurements

Per size, with how each dimension was taken
SizeOverall lengthShank lengthGap widthBend depthWire diameterWeightShank:gap
1Specimen S119.8 mm PcaliperMEA-112.9 mm PcaliperMEA-29.3 mm PcaliperMEA-3—1.1 mm PcaliperMEA-4—~1.39
Calibrated SVG True-scale preview

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.
Catalog records. One box of size 1 (S1) and one hook photographed with it. The hook was measured by caliper.

Specimens, packaging, and label

This record documents one specimen. It describes that specimen only, not every example of the model.

S1 · Box of size 1 with hook

Size
1 (printed on the label)
Container
Box
Hook condition
No rust, pitting, bending, or damage to point or barb visible (P).
Packaging condition
Good — moderate wear, legible
Wear
lid label, top rosette border, right half: Brown darkening over the gold rosettes. LBL-10
Wear
lid label, near lower border left of centre and left of Hollow: Pale tan stain patches. LBL-11
Wear
box lid edges and corners: Scuffed left edge, rubbed top-left corner, small dark speck at upper left of lid, discoloured right edge. LBL-12
Measured
size 1
Photographs
IMG-1IMG-2

Box lid: label intact and fully legible, printing unfaded; brown darkening along the right half of the top border, pale stains near the lower border, scuffed left edge, rubbed top-left corner and discoloured right edge P. The hook was photographed with this box; its assignment to the box is probable rather than certain.

What the label says

LBL-1 trademark · lid label, upper left, above and below key drawing from IMG-1
Key
Brand
LBL-2 printed · lid label, top centre from IMG-1
O. MUSTAD & SÖN
MANUFACTURERS
OSLO - NORWAY
LBL-3 printed · lid label, centre from IMG-1
Qual. 9238
Hollow Point
LBL-4 printed · lid label, centre, line printed in red from IMG-1
Mustad-Viking Hooks
LBL-5 printed · lid label, lower centre from IMG-1
Forged Reversed
T. d. tapered eye  Nickelplated
2 extra strong
LBL-6 printed · lid label, lower left from IMG-1
100
No.
LBL-7 printed · lid label, lower right from IMG-1
Made in Norway
LBL-8 printed · box side panel below lid, cropped at lower edge of frame from IMG-1
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LBL-9 stamp · lid label, lower left, after printed No.; violet ink overlapping the lower rosette border; appears stamped, could be hand-inked from IMG-1
1
Trademark
Key Brand mark at upper left: gold line drawing of a key with an oval hatched bow, straight stem and stepped bit, captioned Key above and Brand below.
As entered on the specimen record
Key
Brand
O. MUSTAD & SÖN
MANUFACTURERS
OSLO - NORWAY
Qual. 9238
Hollow Point
Mustad-Viking Hooks
Forged Reversed
T. d. tapered eye  Nickelplated
2 extra strong
100
No.
Made in Norway
Layout
Key Brand mark at upper left. Maker and address centred at the top; quality number, point style and pattern name in the centre; specification lines at lower centre; count and size at lower left; origin at lower right. The lid label is framed by a border of gold rosettes.
Typeface
The first glyph of the maker's name is narrower than the Ö and reads like a zero. The pattern name is printed in red.
Printed marks
A red printed line on the box side below the lid is cropped at the lower edge of the photograph and cannot be read.
Later marks
Size numeral 1 in violet ink after the printed No., overlapping the lower rosette border; appears stamped, possibly hand-inked.

Pattern history and manufacturer context

Dating

The lid label gives the maker's address as Oslo. Oslo became the capital's official name on 1 January 1925, replacing Kristiania V. The box was therefore printed in 1925 or later I; no later limit is established.

Modern equivalents and related hooks

Sources, open questions, and record notes

Sources & Documentation

This specimen and its packaging — photographed, 2 images
Supports: wireconstructionsub brandcountry of originsize documentedquantity per packageeyebendbarbfinishmeasurements availablemeasurement notesshank gap ratiocumulative records notedating rangepackagingmeta titlemeta descriptionprimary search termssummarytechnical notesidentification

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