This is a used, great vintage piece of survey equipment made by american paulin system. It is a micro altimeter / barometer model m-1. It comes in a nice leather case. The leather is supple with no cracking. [...]
This is a used, great vintage piece of survey equipment made by american paulin system. It is a micro altimeter / barometer model m-1. It comes in a nice leather case. The leather is supple with no cracking. [...]