Scott's Photographica Collection

Otis King's Calculator


This Otis King calculator, often called a cylindrical slide rule, was marketed by Carbic Ltd. of London, England.  It has scales 429 and 430, the serial number is Y0808, and it comes complete with its original box, 8 page instruction manual and leather case.  All items are in very good or better condition.

Otis King's Calculator
Otis King's Calculator shown extended


Calculator with Instructions, Box and Leather Case
Collapsed calculator with instructions, box and leather case


End of Calculator
End of calculator, showing serial number

This item was offered for sale/trade.  It is no longer available.


Home Page
Page updated December 20, 2020