Mark variant 1


ATC in bold condensed capitals inside one cartouche with straight top and bottom and shallow concave side edges.
Low confidence comparison reconstruction.
Maker's mark comparison reference
Compare 1 source-linked mark variant recorded under A. T. Cannon Ltd. These are reconstructions for comparison, not source photographs or authentication evidence.


ATC in bold condensed capitals inside one cartouche with straight top and bottom and shallow concave side edges.
Low 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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