The Boreal Arrow 

Code BA11082434.2: Antique German Compass and Map Measurer, c. 1950

This is a compass with map reader made between 1950 and 1960. The compass is in working order and the map reader is working fine. The idea behind this instrument is to measure distances over a map by rolling the small wheel over the map. The movement of the needle on the dial will allow to measure the distance by following the instructions on the paper. There are two scales: centimetres to kilometres and inches to miles. The instrument is housed in a fine leather case that is still in excellent condition. Instrument in overall good condition.