A Boucher's patent calculator, of pocket watch form with fixed front and revolving rear dials, by Manlove Alliott Fryer & Co. Nottingham & Rouen - 2in.(5cm.) diam.

Details

A Boucher's patent calculator, of pocket watch form with fixed front and revolving rear dials, by Manlove Alliott Fryer & Co. Nottingham & Rouen - 2in.(5cm.) diam.

More from Scientific and Medical Instruments,Tools and Other Apparatus

View All