Raimey,

It appears Junior here wasn't firing on all cylinders in the late hours last night. The "Blitz" action shown in your pictures flew by me like an owl in the dark. What you have there appears to be a Brenneke "Ideal" Verschluß while the picture shown in your book is the Brenneke Verschluß, see below ...






It would be pretty wild, at least to me, if the frame was Dural aluminum.

Regards,

Mark