Webster Signature Database - Suggest Correction

Signature Maker Instruments Comments Location References
HOLTZHEY, JOHANN KONRAD Germany, fl.1719-31, MIM Sundial Plate and Universal Sundials = Uffenbach Coll., U. of Göttingen. one of the universal sundials is of cardboard and is inscribed "Heliotropicum gnomonicum, Ulm, 1720"; author; designer. Ulm. Zinner 1.

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