Vintage Selsi of Germany Compass/Map Measurer

Very old Selsi of Germany
Map measurer / magnetic compass
with case and original instructions
Overall in very good condition and working perfectly
Lenses on both the compass and map measurer
are clear and without scratches
Nickel plated case is clean and without any scratches or corrosion.
T is slight discoloration on the compass needle from corrosion.
Map measurer has both inches to miles or verstes and centimeters to kilometers scales
It is stamped Selsi - Germany
Case is stamped Made in Germany
Instructions are labeled Western - Germany