Webster Signature Database - Suggest Correction

Signature Maker Instruments Comments Location References
KELLER, JOHANN CHRISTOF Austria, c.1600, MIM Horizontal Sundials = P.C., OXF (2), ADL-M293, Burndy Library, Conn., P. and S. 6/18/1894, P-B 1/22/54. mathematician. Linz. Zinner 1; Engelmann 1; Michel 3; USNM; Baillie 1; Maddison 1; ADL; RSW.

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