Webster Signature Database - Suggest Correction

Signature Maker Instruments Comments Location References
J.C. DE W. Holland, 18th Century, MIM Horizontal Sundial, marble = UTR. also marked "fec. et exsc." de Rijk.

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):