Maker's mark comparison reference

Birmingham maker's marks

Compare 1 source-linked mark variant recorded under Birmingham. These are reconstructions for comparison, not source photographs or authentication evidence.

Mark variant 1

Birmingham: One upright triangular import device with a smaller internal vertical triangular stroke, centered inside one compact rounded punch bounda…; line reconstruction.
Line reconstruction
Birmingham: One upright triangular import device with a smaller internal vertical triangular stroke, centered inside one compact rounded punch bounda…; oxidized reconstruction.
AI-assisted oxidized reconstruction

One upright triangular import device with a smaller internal vertical triangular stroke, centered inside one compact rounded punch boundary; preserve only the two nested source-visible triangle strokes and one boundary.

Low confidence comparison reconstruction.

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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