This type of brass compass was manufactured by at least 2 companies: Cruchon & Emons, and Plan Ltd. Neuchatel Switzerland.
They represent an early (circa WW 1) attempt at a mirror compass, with an (originally) polished brass insert in the cover which allows the card (w/ bearings printed in reverse) to be read while sighting on a target.
The bottom of the case is stamped "Made in Switzerland". The compass is used, but still poining North strongly.
These compasses were purchased by the U.S. Engineer Corps
for the US Army during WW 1. The top of the lid is then marked US Engineer Corps and the compass has an individual serial number.
This compass has a name scratched into the compass card. "A.C.ADAMS Bristol Tenn"
Using Google I found a picture and the following text:
The Bristol Tennessee High School basketball team is shown in their 1914-1915 season with coach A. C. Adams (standing center in suit).
So mr Adams wend to War in Europe and wrote his name on his compass. He survived the war and returned. He was coach again in 1920 and 1921.