Silva-system COMPASS

This is a vintage Silva-System COMPASS type7.  It comes with the instructions. It says Polaris and Compass liquid filled on the box. Also SILVA CO. and La Porte, Indiana, Made in Sweden, is on the box. The compass and instructions are like new. There's a pastic cover for the box that is pretty scuffed up. Probably from storage.I It measures 3" X 2" with a round bezzle on top.

Thanks for looking,

Loel