IF you know what these are, we can be friends.
To check your knowledge: On the left is a Union Switch & Signal company-produced M1911A1 from 1943, made for the U.S. Army in Swissvale, Pennsylvania. On the right, a Kongsberg Våpenfabrikk-made M/1914 from 1925, made for the Royal Norwegian Army in Oslo.
Don’t let the slide markings fool you, both are in .45ACP, and both likely saw service in WWII.
I recently got to handle a few of each in our vault and put together a little article on these more uncommon Government Issue .45s. Check it out in my column at Guns.com