SewSnap: Singer Serial Number

Scan the plate or type the serial. Exact year, factory, model family, and what the machine is worth today.

Identify a machine — launcher hub with recent finds: Singer 201, 99K, and 221 Featherweight with typical sale ranges, and three input rows: scan the badge, type the serial, search by name

Type the serial — AL420000 entered, prefix chip rail above the keypad, live match card resolves to a 1953 Singer 221 Featherweight, batch of 50,000

Result card — full-bleed Singer 221 plate, year 1953, Featherweight cult eyebrow, AL-series batch of 50,000 with notes and a $350 to $1,500 typical sale range

Featherweight alert — celebratory certified-find card for a 1953 Singer 221 with a $350 to $1,500 typical sale range and Save / Share actions

Collection — portfolio hero showing $1,325 total estimated value across 3 machines (2 cult) with a REFRESH ALL action and a grid of Singer 201, 99K, and 221 cards

Recent finds — offline list of every identified machine with model, year range, cult flag, and typical sale range, accessible without an account

Exact year, not a guessSinger serials from 1900 to 1971 decode against bundled ISMACS production records. 9,181 batch ranges covering 81 million machines.

Scan, type, or searchFrame the serial plate, type the digits, or search by model name. Three ways in, one Result Card out.

Factory of originElizabethport NJ, Clydebank, Kilbowie, Bridgeport. Provenance straight from the serial table, not crowdsourced.

Featherweight auto-flagSinger 221, 222K, 201, 301, 500, and 503 light up the moment a scan completes. Cult finds earn a celebration.

Live eBay sold compsTap through to actual recent hammer prices filtered to your model. Price with data, not hope.

Collection trackerEvery find saved on your device. Portfolio total, value-history sparkline, refresh all in one tap.

What you get

Identification, valuation, and collection tracking for vintage sewing machines — no account, runs on your device.

Singer Serial Lookup Free

Deterministic ISMACS match for serials 1900 to 1971

Manual Serial Entry Free

Unlimited typed lookups, prefix chip rail, live match

Model Name Search Free

577-entry catalogue across the Singer lineup

Camera Scan Free

3 lifetime free finds with full feature access

Multi-Brand Decade ID Free

Bernina, Pfaff, Husqvarna, White, Elna, Brother, New Home

Cult Collectible Flag Free

Featherweight, Free-Arm, Rocketeer auto-detection

100 Scans / Month Annual

Camera-scan quota refills every month

Live eBay Sold Comps Annual

90-day hammer prices filtered to your model

Unlimited Collection Annual

Track every machine you own in one place

Value-History Sparkline Annual

Watch each machine's estimated value drift over time

Portfolio Delta Annual

Total estimated value with up/down pill on every refresh

Shareable Find Cards Free

9:16 and 1:1 cards for Featherweight groups and Reddit

200 Scans / Month Lifetime

Forever, no renewal

Insurance-Grade Certificate Lifetime

PDF appraisal you can hand to your insurer, consignor, or buyer

Offline History Free

Every find saved on your phone, no account required

iOS 26 Design Free

Editorial Pocket Curator aesthetic, light and dark mode

Free

No account, no ads

3 lifetime finds with
full feature access.
Unlimited typed lookups and search.

Annual

$29.99 / yr

Cancel anytime

100 scans per month,
live eBay sold comps,
unlimited collection, value history

Lifetime

$79.99

One-time. Yours forever.

200 scans per month forever,
plus insurance-grade
appraisal certificates

Last updated: May 17, 2026