Ah thank you. One can tell a lot if such details are known
Am looking at Norme's photo of the receiver and toggle, and comparing it to the 3rd photo of hollowpoint67's first post. Big difference! In the latter, very worn "Erfurt" as opposed to a very sharp "83" versus evenly worn "Erfurt" and Serial #. Also a very crooked line in the joint just behind the extractor versus straight and at right angles.