Webster Signature Database - Suggest Correction

Signature Maker Instruments Comments Location References
IRWIN, CHRISTOPHER England, c.1759, designed an instrument to find longitude. London. Dawson 216, 1971.

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):