5th May, 2022 10:00

The Collectors Sale

 
Lot 57
 

A Collection of Slide Rules

a Halden Calcules in case with instructions, a circular slide rule by Fearn's Calculators, cased with instructions, a Faber Castell /10circular slide rule in leather case, Ratcliffe's Spring Calculating slide rule, Faber's Calculating Rule, and another in beech (6)

Sold for £94

Result plus buyers premium


 

a Halden Calcules in case with instructions, a circular slide rule by Fearn's Calculators, cased with instructions, a Faber Castell /10circular slide rule in leather case, Ratcliffe's Spring Calculating slide rule, Faber's Calculating Rule, and another in beech (6)

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