Mark variant 1
Rounded SIS plaque with three supported S/I/S-like forms rendered as unfilled gray contours.
Low confidence comparison reconstruction.
Maker's mark comparison reference
Samuel Isidore Simpson maker's marks
Compare 1 source-linked mark variant recorded under Samuel Isidore Simpson. These are reconstructions for comparison, not source photographs or authentication evidence.
- Source date statements
- 1907 (registered May ;1907)
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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