I'm a newbie to the site, love all the info.
I inherited my Grandfather's FN High Power he brought back from the war. Based on the info I have, its a German WaA140 with Tangent Sights ssn: 112066 (1942?), Nazi marks, etc. What I can't identify are the proof marks at the bottom of the hand grips where you insert the magazine. Looks like an "8" "I" and a triangle?
Any insights you may have would be greatly appreciated. Thanks!