Webster Signature Database - Suggest Correction

Signature Maker Instruments Comments Location References
BAUER, JOHANN Germany, 1639, MIM Celestial Globe, 1639 = Berlin-Babelsberg University Observatory. see Jan van Call; may be same man. Callens. Zinner 1; Price 2.

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):