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Maker's mark comparison reference

Krider & Biddle maker's marks

Compare 2 source-linked mark variants recorded under Krider & Biddle. These are reconstructions for comparison, not source photographs or authentication evidence.

Source date statements
Philadelphia, Pa. c1860 - 1870

Mark variant 1

Krider & Biddle: K&B, hammer; line reconstruction.
Line reconstruction
Krider & Biddle: K&B, hammer; oxidized reconstruction.
AI-assisted oxidized reconstruction

Source-recorded mark text: K&B, hammer

Worn oval K-over-B emblem with two crossed metalworking tools.

Low confidence comparison reconstruction.

Mark variant 2

Krider & Biddle: K&B, hammer; line reconstruction.
Line reconstruction
Krider & Biddle: K&B, hammer; oxidized reconstruction.
AI-assisted oxidized reconstruction

Source-recorded mark text: K&B, hammer

Oval K-over-B emblem with two crossed metalworking tools.

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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