Identity boundary
Labels currently in scope
- 301
- 301A
Evidence note: Useful slant-shank and Class 221 bobbin boundary; cabinet and electrical variants still need comparison.
AUDITED CANDIDATE · QUEUE #6
Singer 301 / 301A
This dossier also has a public research-cluster page. Publication records the evidence boundary; it does not confirm a shared mechanical platform or part compatibility.
Source audit
1 model-level source lead
- collectorDIRECT DOCUMENT
Singer 301-1 / 301-2 / 301-3 parts lists
Exact multi-variant document; 301A identity still needs its own title-page evidence.
parts list · Covers: 301-1, 301-2, 301-3 · Checked 2026-09-07 · Link only
Free demand evidence
16 unique autocomplete leads
US / English snapshot collected 2026-09-07. This measures suggestion breadth only—not monthly search volume.
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6 suggestions · ok
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7 suggestions · ok
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