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Maker's mark comparison reference

Castelberg, Petitpierre & Co Castelberg & Co (from 1879) maker's marks

Compare 1 source-linked mark variant recorded under Castelberg, Petitpierre & Co Castelberg & Co (from 1879). These are reconstructions for comparison, not source photographs or authentication evidence.

Source location statements
Holborn Viaduct, London
Source date statements
(registered Aug ;1875) · 1877 (registered Oct ;1877)

Mark variant 1

Castelberg, Petitpierre & Co Castelberg & Co (from 1879): Source-bounded low-confidence contour preserves the visible mark geometry and supported lettering or device; line reconstruction.
Line reconstruction
Castelberg, Petitpierre & Co Castelberg & Co (from 1879): Source-bounded low-confidence contour preserves the visible mark geometry and supported lettering or device; oxidized reconstruction.
AI-assisted oxidized reconstruction

Source-bounded low-confidence contour preserves the visible mark geometry and supported lettering or device.

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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