Webster Signature Database - Suggest Correction

Signature Maker Instruments Comments Location References
ROTH, DR., AND M. WERTHEIMBER France, c.1845, invented an automaton calculator. Daumas 1; Practical Mechanic and Engineer's Magazine, Vol.14, pp.129-31.

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):