Webster Signature Database - Suggest Correction

Signature Maker Instruments Comments Location References
HARTMANN, LEONHARDUS Switzerland, fl.1642-48, MIM SIM Circumferentor and Sundial, 1642 = WUR; Nocturnal, 1648 = ZUR; Proportional Dividers = LID. St. Gallen. Zinner 1.

E-mail address:
Explain your correction here:
To protect against spam entries,
please type the sum of 5 and 2 into this box
(i.e. the number between 6 and 8):