Collecting Military Compasses

Subtitle

Opticompas

 

 

 Manifactured by the Morin company. It's a sturdy compass.  All covered in rubber. It a precise compass in degrees. The clever thing about the Morin design is that alignment becomes unnecessary, due to the way the optic works. The lens and 45 - degree mirror , through which the scale is viewed, is designed so as to make that scale appear to be focused at infinity.  When you look horizontally through the little lens , you can see about 10 degrees of the compass scale, and just directly above that you can see the horizon, its bearing is the reading on the scale thats just above the scale. So this compass doen't have sighting marks to align it, as others compasses do, It doesn't need aligning at all except sufficiently to put the mark being observe some where over the window, 10 degree wide.

 

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