This map measuring tool was produced in the 1950’s and was used aid motorist navigate maps. On the tool it uses both kilometres and miles on either side of the tool. The tool features a looking glass and a conversion table! Comes with original papers in a red leather case

Dimensions:
Tool- 3.5”x1.5x0.25”
Case- 4”x2”x0.5”
Weight: 19g