Webster Signature Database - Suggest Correction

Signature Maker Instruments Comments Location References
I.C.R. 1 Germany, 18th Century, OIM Nürnberg-type Microscopes, wood and paper = P.C., etc. the mark I C over R within a circle is burned into the base; these microscopes were produced by toy makers rather than by optical instrument makers. Nürnberg. G.L'E. Turner 16; RSW.

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