Scientific Instruments > Calculating

Otis King Slide Rule Model 'K'

Item#: SCI1213

SOLD

 

Otis King Slide Rule Calculator Model 'K'. Otis King is a cylindrical pocket slide rule with helical scales 66 inch long to add subtract multiply and divide numbers, made in England by Carbic ltd.London in 1971. The model K has spiral logarithmic scales on the holder and cylinder sections. This slide rule is a type C, model K, with scales 414 and 423 and serial number B2101, It is in excellent condition.