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Maker's mark comparison reference

Sinclair Manufacturing Co. maker's marks

Compare 1 source-linked mark variant recorded under Sinclair Manufacturing Co.. These are reconstructions for comparison, not source photographs or authentication evidence.

Mark variant 1

Sinclair Manufacturing Co.: Single uppercase S inside a right-pointing shield or arrowhead-like punch outline with worn breaks; line reconstruction.
Line reconstruction
Sinclair Manufacturing Co.: Single uppercase S inside a right-pointing shield or arrowhead-like punch outline with worn breaks; oxidized reconstruction.
AI-assisted oxidized reconstruction

Single uppercase S inside a right-pointing shield or arrowhead-like punch outline with worn breaks.

High confidence comparison reconstruction.

Sources and comparison limits

Maker labels and date or location statements follow the cited source records. Similar names across source collections have not been merged. Compare the photographed mark and the complete object before relying on a resemblance.

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