Line reconstructionLineMark variant 1
Medium confidence comparison reconstruction.
Long rectangular double-line punch and W B ampersand S O N sequence are retained.
Compare 1 source-linked mark variant recorded under William Birks & Son (probably). These are reconstructions for comparison, not source photographs or authentication evidence.
Line reconstructionLineMedium confidence comparison reconstruction.
Long rectangular double-line punch and W B ampersand S O N sequence are retained.
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.