Class or model
The table’s machine class identifies the recorded family or model. Some entries list several classes or an experimental designation. A serial entry may not establish the full subclass or every fitted feature.
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The history is in the details
Find historical allocation records, identify an exact Singer model and its manuals, or interpret a supported later serial code with the machine family you know.
Start with the machine number
Enter the serial, the model number, or both. Keep the full prefix, punctuation and suffix from the machine label.
The supplied model catalogue adds 3,500 searchable scoped records and documented aliases. Eleven unresolved catalogue entries are held for review. Model numbers can be reused; compare every matching identity and manual cover.
*Coverage varies by source. Detailed historic records cover 1850–1971 with gaps; Anderson collector research, broader year charts and prefix context are labelled separately. The later electronic formats apply only to the listed model families. No universal current-model serial decoder was verified in the sources checked.
A little context goes a long way
The table’s machine class identifies the recorded family or model. Some entries list several classes or an experimental designation. A serial entry may not establish the full subclass or every fitted feature.
This is when a serial batch was assigned in the records. A machine could be completed or sold later. Where only a year or broad period is listed, the lookup preserves that level of detail.
This is the quantity recorded for that allocation. It is not the total number of that model made, or the number still surviving. When the source quantity differs from the serial range size, we flag it.
Coverage & sources
This independent tool uses factual serial fields from the International Sewing Machine Collectors’ Society (ISMACS) Singer database and the September 2024 pre-1900 research table. Additional references include Singer Italy’s published charts, Singer301’s collector registry and a technician’s transcription of selected electronic-machine serial formats. Every record links to its source. Manuals+ is not affiliated with these sources or Singer.
The import contains 9,692 source entries. 9,677 can be searched automatically, including 4 individual-machine observations and 27 Anderson research entries. The supplemental references contain 181 usable year ranges, 45 series-context rules and 3 model-specific code systems. 15 entries have unusable, incomplete or substantially inconsistent ranges and are excluded from automatic matching. Overlapping entries are shown together. Numeric-only coverage includes 468 searchable research entries.
Source tables captured October 16, 2026. The original tables remain the reference for source corrections and further research. Source abbreviations are retained as recorded.
Explore the original Singer tablesMore coverage, with the right context
NA, NB and NC now include labelled model-range research for 301/301A, 401A, 403A, 500A and 503A. JA–JE have broader Canadian series references. A prefix period alone does not identify a model or date one machine.
Anderson research source ↗Selected electronic formats encode a year digit, a day of the year, an assembly line and a sequence. Choose the documented machine family in the form. If the decade is unknown, the full year stays unresolved.
Service-format transcription ↗Enter the exact model above to find sourced model details and manual links. Product specifications and manual dates do not date an individual machine. No universal current-model serial decoder is claimed.
Singer’s identification guide ↗Before you go
Yes. Use the model field for labels such as 221K1, 15-91, M1500 or 384.13012000. The catalogue keeps suffixes and punctuation and preserves separate regional records. A bare identifier that is also a known model prompts you to check the label before any historical date is applied.
Yes. For example, AD541546 and AD-541546 return the same records. Uppercase and lowercase letters work, and spaces and common dash characters are accepted. Keep any leading zeros.
Enter the first machine serial number. The lookup searches the September 2024 pre-1900 research table and shows its model, date or period, factory and secondary serial information where recorded. Many entries are approximate or uncertain; the result preserves those qualifications. Secondary or third numbers alone are not searched.
The researched public sources do not establish a universal decoder for current models. The listed Futura, Athena and Touch-Tronic formats are specific historical electronic systems. They are not rules for every recent Singer. Use a current machine’s model label, manual and Singer support.
Usually the table gives a serial allocation date. That may be earlier than completion or sale of the individual machine. The W series provides year information without the model and quantity detail found in many other series.
Some source ranges overlap, and individual reported machines can also fall inside a broader allocation. The tool shows every matching record and flags the overlap. Compare the physical machine and the original table instead of treating the first match as certain.
Some source entries leave those fields blank or contain a value that cannot be used reliably. The lookup displays “Not recorded” and flags known issues instead of inventing the missing detail.
No. Value depends on condition, completeness, features and the market for a particular machine. A serial lookup does not appraise a machine or establish its authenticity.
Use the model or machine class in your result to search the Manuals+ library. Check the title, subclass, controls and machine features before following the instructions. A motor model or cabinet number may not identify the sewing-machine manual you need.
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