Webster Signature Database - Suggest Correction

Signature Maker Instruments Comments Location References
KLEIN, P. JOHANNES Czechoslovakia, 1684-1762, MIM Astronomical Clocks = Prague Observatory (2), DRE (1738); Quadrant, large = PRA. Prague. Horsky and Skopova; Zinner 1; Grötzsch 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):