Line reconstructionLineMark variant 1 of 2
Medium confidence comparison reconstruction.
Rounded punch, two initials, and one centered stop are retained in the observed order.
Compare 2 source-linked mark variants recorded under Samuel Pemberton. These are reconstructions for comparison, not source photographs or authentication evidence.
Line reconstructionLineMedium confidence comparison reconstruction.
Rounded punch, two initials, and one centered stop are retained in the observed order.
Line
AI oxidizedLow confidence comparison reconstruction.
Uppercase S followed by uppercase P inside one worn round-to-oval cartouche.
Original source statements:
USD 90 · Thomaston Place Auction Galleries · 2026-06-26
GBP 150 · Roseberys · 2026-06-24
USD 600 · Akiba Galleries · 2026-03-17
Prices remain in their original currencies; buyer-premium inclusion is unknown. These are reviewed maker-name auction examples, not proof of an object's attribution.
This maker-level evidence does not value your object. Matching a mark cannot establish authenticity, material, condition or provenance.
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.