heavy brass-bound 12" two-fold boxwood rule, c.1900, with protractor hinge and twin levels, can be used as a simple clinometer, compass inset to one arm, tables for proportional rise by degree, and inches per yard by degree, cased
Sold for £186
Result plus buyers premium
heavy brass-bound 12" two-fold boxwood rule, c.1900, with protractor hinge and twin levels, can be used as a simple clinometer, compass inset to one arm, tables for proportional rise by degree, and inches per yard by degree, cased
Auction: The Collectors Sale, 27th Jan, 2022