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Mustad 7957 B hook silhouette
Hook Reference › O. Mustad & Son Hooks › Mustad Hooks – 7957 B

O. Mustad & Son 7957 B

Mustad 7957 B1925 or later

Evidence reviewed October 19, 2026. Marks: P photographically · V verified · I inferred · E estimated · S speculative What they mean

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Summary

The Mustad 7957 B is documented here from one size 2/0 box and the loose hooks photographed alongside it. The label reads O. MUSTAD & SÖN, MANUFACTURERS, OSLO – NORWAY, Qual. 7957 B, Mustad-Viking Hooks, and states Forged, T. d. tapered eye, Bronzed and Long shank.

The OSLO line places the box in 1925 or later. Nothing examined sets an upper date, an introduction date for the Viking line, or a period of use.

The record covers the box lid and a few hooks only. The box contents and period catalogue entries are not yet documented.

Photographic record

4 photographs

Paperboard box lid with a pasted label printed in gold and red ink: O. MUSTAD & SÖN, OSLO - NORWAY, Qual. 7957 B, Mustad-Viking Hooks, and 2/0 handwritten in purple at lower left.
IMG-1Mustad 7957 B Box and Label size 2-0 Box lid and label, size 2/0. The size is handwritten in purple ink beside the printed 100 and No.

How to identify it

On the documented box, the label prints O. MUSTAD & SÖN, MANUFACTURERS, OSLO – NORWAY and Qual. 7957 B in gold, with Hollow Point below. Mustad-Viking Hooks follows in red.

The remaining lines read Forged Straight, T. d. tapered eye and Bronzed, Long shank, and Made in Norway. A skeleton-key trademark marked Key Brand sits at the left, inside a gold border of snowflake or rosette ornaments.

The size is written by hand, here 2/0 in purple ink, beside the printed 100 and No.

Technical profile and measurements

Features of the model, as recorded
FeatureRecordedEvidence
EyeTapered Eye, Turned Down
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Turned-down eye; the wire end curls back into a small loop that looks narrower than the shank. Angle roughly 25 to 40 degrees E; loop closure not resolvable. P

OBS-1OBS-2LBL-4
WireStandard, Forged
Shank1X Long — Plain
BendViking, Wide gap
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Smooth rounded bend continuous with a straight shank, wide throat, point end roughly parallel to the shank axis P. Bend position is nearest the catalog's Viking group.

CMP-2LBL-3SRC-3SRC-4LBL-4OBS-3CMP-2 compared with 25 catalogued hooks classified Viking
PointHollow Point
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Cut barb raised from the inner side of the point, short with a blunt tip, angled back toward the bend P. Angle roughly 35 to 45 degrees E.

OBS-5OBS-6
FinishBronzed — stated on packaging
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Dark olive-brown, bronze-toned finish; the label states Bronzed. Reddish-brown spotting on the outside of the bend and upper shank, and pinkish-red patches behind the barb. P

OBS-8LBL-4
ConstructionForgedOBS-5

The label states Forged, Straight, T. d. tapered eye, Bronzed, Long shank and Hollow Point. The photographed wire is flat-faced, with a lengthwise edge line on the bend and shank, and the shank is plain and straight P. The bend is rounded and the point end runs roughly parallel to the shank P.

The label gives no shank X-length, wire gauge or bend name. Shape comparison against the catalog places the shank proportion nearest 1X Long, the wire thickness nearest Standard and the bend position nearest the Viking group. Current listings give 1X long, standard weight and a round bend code V.

The point tapers, with fine file-like hatching on the inner face, and the barb is cut from the inner side P. The side views do not show whether the inner face is concave. Mustad’s current wording for a hollow point is hollowed or rounded out between barb tip and point tip V.

Measurements

Per size, with how each dimension was taken
SizeOverall lengthShank lengthGap widthBend depthWire diameterWeight
2/0Specimen S141.4 mm IcaliperMEA-1—12.7 mm IcaliperMEA-2———
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.

Specimens, packaging, and label

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

S1 · Box, size 2/0

Size
2/0 (printed on the label)
Container
Box
Hook condition
No bends or breaks seen on the photographed hooks, and the point tip looks intact. Reddish-brown spotting on the bend and upper shank, and pinkish-red patches on the wire behind the barb.
Packaging condition
Good — moderate wear, legible
Wear
label, upper right, right of the O. MUSTAD & SÖN line: Thin vertical crease or lifted edge line running down from the top margin to about the Qual. line; printed text intact. LBL-7
Wear
label, centre right, Qual. line to Mustad-Viking Hooks line: Brown stain and fold streaks across the right half of the label; the printed text is still legible. LBL-8
Wear
box lid, left edge: Outer paper layer peeling and rough, delaminating along the edge. LBL-9
Wear
box lid, right edge beside label: Whitish translucent strip, tape or paper, along the edge; discoloured. LBL-10
Wear
box lid, lower right below label: Brown diagonal stain or fold line across the paper. LBL-11
Wear
box lid, margins around label: Scattered brown foxing flecks across the tan box paper. LBL-12
Measured
size 2/0
Photographs
IMG-1IMG-2IMG-3IMG-4

Only the box lid was photographed. Lid damage: a crease or lifted edge line and brown stain streaks across the label, a peeling outer layer at the left edge, a translucent strip at the right edge, a brown diagonal stain below the label, and scattered foxing. The printed text is legible. The loose hooks are assigned to this specimen as probable; nothing in the images ties them to the box.

What the label says

LBL-1 trademark · label, left column beside text block from IMG-1
Key
Brand
LBL-2 printed · label, upper centre and right, gold ink from IMG-1
O. MUSTAD & SÖN
MANUFACTURERS
OSLO - NORWAY
Qual. 7957 B
Hollow Point
LBL-3 printed · label, centre, red ink, below Hollow Point from IMG-1
Mustad-Viking Hooks
LBL-4 printed · label, lower centre and right, gold ink from IMG-1
Forged Straight
T. d. tapered eye  Bronzed
Long shank
Made in Norway
LBL-5 printed · label, lower left, gold ink from IMG-1
100
No.
LBL-6 handwritten · label, lower left, purple ink, over printed 100 and No. from IMG-1
2/0
Trademark
Gold-ink skeleton key with an oval, lobed bow at the top and the bit at lower right, key pointing downward. The word Key is printed above it and Brand below.
As entered on the specimen record
Key
Brand
O. MUSTAD & SÖN
MANUFACTURERS
OSLO - NORWAY
Qual. 7957 B
Hollow Point
Mustad-Viking Hooks
Forged Straight
T. d. tapered eye  Bronzed
Long shank
Made in Norway
100
No.
Layout
Pasted paper label on the box lid. Gold printed border of repeating snowflake or rosette ornaments on all four sides. Key trademark in a left column beside the text block. Mustad-Viking Hooks is printed in red; every other printed line is gold. 100 and No. sit at lower left.
Later marks
2/0 in purple ink at lower left, over the printed 100 and No.

Care of this specimen: Handle the box by its sides. Leave the peeling outer layer at the left edge and the translucent strip at the right edge undisturbed. Store the loose hooks dry.

Condition

The photographed hooks show no bends or breaks, and the point tip looks intact P. The box lid has a creased, stained label and a peeling outer layer at the left edge. Box contents are not shown.

Pattern history and manufacturer context

Series

The label names the line Mustad-Viking Hooks, printed in red. Mustad’s current catalogue uses the Viking name on a forged live-bait hook with a 5X short shank and an upturned eye, so the name alone does not identify a bend V.

The model number remains listed today. A fly-tying club chart and a dealer both carry the 7957B as a nymph hook with a 1X long shank and a turned-down eye V. The introduction date of the Viking line and of Qual. 7957 B is not documented in the sources examined.

Design lineage

A dealer page lists the 7957B and the S80-3906 Sproat nymph hook as separate products V. The sources examined do not document where the 7957B pattern came from or which Mustad models are earlier or later versions of it.

Dating

The label reads OSLO - NORWAY. Oslo became the official name of Norway's capital in 1925, so the label dates from 1925 or later V. No source examined gives an upper date, an introduction date for the Viking line, or a period of use for this label. The label shows no printed date.

O. Mustad & Son — Mustad traces its roots to 1832 in Vardal, with headquarters in Gjøvik. Mathias Topp designed an automatic hook machine, and hook production was industrialized in 1877. A Singapore hook factory opened in 1970. Read the maker’s history →
The Name on the Label. Norway's capital took the name Oslo by a law of 11 July 1924, effective 1 January 1925. Before that, government documents spelled it Kristiania, a spelling in official use since 1877.

Use

  • Nymph

Primary application

A fly-tying club chart lists the current 7957B as a dry/nymph hook, and a dealer sells it as a wet nymph hook V. The label carries no application, so the use intended for this packaging is not documented.

Collecting and buying

3 / 10CollectabilityRarity: Common

Rated 3 of 10, common: current dealers and a club chart still list the same model code, and no scarcity source, demand record or sold sale was found for boxes with the OSLO - NORWAY label.

Basis: The same model code is still listed by a current dealer and a fly-tying club chart V. No scarcity source or recorded sale was found for boxes with the OSLO - NORWAY label.

Supply evidence is limited to current dealer and club listings of the 7957B model code. Collector demand, auction results and recorded sales were not found in the sources examined.

Market value

Insufficient recorded sales data to estimate a reliable value.

0 sold observations recorded; 2 are needed, with the basis and date of the range, before a value is shown. Asking prices are shown as asking prices only.

Low ($6): Good condition — opened card, most or all hooks present, moderate label wear and aging patina, stored conditions. High ($16): Excellent condition — card well-preserved with minimal label wear, complete hook count (100), minimal edge damage, original tissue wrapping partially intact. Premium factors: sealed or near-sealed original packaging, smaller sizes (6-12 command 2-3x premium over 2/0), early 'Made in Norway' attribution, japanned or tinned finish variants, cards with exceptional label clarity and minimal foxing. Platforms: eBay (worldwide sales), UK vintage tackle dealers, fly-tying specialty retailers, tackle antique fairs. Confidence: V verified — based on 2 completed eBay listings ($3.99, $18.00) and eBay market history data (Apr 2023 - Apr 2026: avg $11.87, range $3.25-$35.00). The wide range reflects significant variation by size and condition; complete sealed cards of smaller sizes reached $35.00, while loose large-size hooks or poor-condition cards sold at $3.25-4.99.

Recorded sales and listings
ListingPriceDateCondition
Mustad 7957B HooksFrom $18 askinglive listingNew
Vintage Pack Of 25 Mustad 7957B Viking Fly Tying Hooks, Size 18, NorwayFrom $3.99 askinglive listingNew

Where to find

A dealer lists the current 7957B in packs of 100 V. Sources for boxes with the OSLO - NORWAY label are not documented.

Modern equivalents and related hooks

Sources, open questions, and record notes

Sources & Documentation

This specimen and its packaging — photographed, 4 images
Supports: sub brandconstructionoffset kirbedbendeyebarbfinishcondition notesdating rangepackagingprimary search termsmeta titlemeta descriptionoverall lengthgap widthshank lengthbend depthwire diameter measuredshank gap ratiomeasurement notessummaryseries historytechnical notesprimary applicationidentification

Entry last updated June 10, 2026. Entries are updated as new specimens, measurements, or documents come to light.