Unit I D request

[FNorm]

Clark! Cool! I gotta get that book! anything in there about the 9th Dragoons?

Adler,

You may or may not have the hold open device. Most lugers were recalled to have it installed, but some didn't.

Here's a shot of a 1913 DWM with the HO installed. See the pin in whilte and the inspection mark just up and behind the trigger pin?

Also a shot from the top. The HO is alongside the inner right frame, and the cross piece is just behind the mag well.