OMEGA - Caliber?

Posts
10
Likes
0
Hi team,
Can someone tell me what Omega caliber this is?
Thank you all in advance...
Seve
 
Posts
16,701
Likes
35,033
Hi team,
Can someone tell me what Omega caliber this is?
Thank you all in advance...
Seve

Caliber 39.5 L 17P introduced in 1917.
Serial number dates to about 1920 to 1930 depending on what source is used.
Seems to be missing a screw in the barrel bridge, some of the other bridge screws don't look right either.