My initial thought was Martini cadetDoes that lever work the block up and down?
It looks like a Martini action with a lever that someone had built?
Let's see what a few others have to say.
@Leadeye
Farquharson, didn't VW use that slogan years ago.Farquharson style gun, I think there were a number of gun makers here in the states copied his style.
Which made this joke possible-fahrvergnügen was the VW slogan
See it now that you pointed it out.It has a German Eagle N proof on the falling block making it a post 1939 build. I will have to check my single shot books when I get home for more info.