Mark variant 1
Two visible capitals R and T are preserved in order inside a rounded rectangular cartouche.
Low confidence comparison reconstruction.
Maker's mark comparison reference
Robert Thornton maker's marks
Compare 1 source-linked mark variant recorded under Robert Thornton. These are reconstructions for comparison, not source photographs or authentication evidence.
- Source date statements
- 1866..1877 (registered Jul ;1866)
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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