INSTRUCTIONS FOR THE USE OF A. W. FABER'S IMPROVED CALCULATING RULE
Pickworth, Gharless N.
INSTRUCTIONS FOR THE USE OF A. W. FABER'S IMPROVED CALCULATING RULE - London Manufactory Established 1761
MCE
510 / PIC
INSTRUCTIONS FOR THE USE OF A. W. FABER'S IMPROVED CALCULATING RULE - London Manufactory Established 1761
MCE
510 / PIC