Mark variant 1

Three initials with two separating dots are retained in the source's horizontal sequence within its rectangular border.
Medium confidence comparison reconstruction.
Maker's mark comparison reference
Compare 2 source-linked mark variants recorded under C A T. These are reconstructions for comparison, not source photographs or authentication evidence.

Three initials with two separating dots are retained in the source's horizontal sequence within its rectangular border.
Medium confidence comparison reconstruction.

The left-to-right CAT lettering and chamfered oblong punch border are retained.
Medium confidence comparison reconstruction.
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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