British Parallel rule A.& A. London 1940

Name: British Parallel rule A.&amp; A. London 1940
SKU: Parallelrule
Availability: InStock

$45.00

Brass rule in wooden carrying case with leather straps. Marked A.& A. Ltd. London and dated 1940, Mk II with British broad arrow military acceptance mark. Fold-up sighting slots at either end of rule. Wooden case has bottom missing. Interesting item, unsure of exact use whether navigation or artillery direction plotting but surely a military use.

SKU: Parallelrule Category: Militaria

Description
Additional information

Description

Brass rule in wooden carrying case with leather straps. Marked A.& A. Ltd. London and dated 1940, Mk II with British broad arrow military acceptance mark. Fold-up sighting slots at either end of rule. Wooden case has bottom missing. Interesting item, unsure of exact use whether navigation or artillery direction plotting but surely a military use.