I am looking for a diana mod.50b of 1950s vintage in very good condition,prefer one complete with diopter sight and original rotating element foresight.i have some confusion over the model variations but believe there is an almost identical 50a.without the diopter. i think these were made from early 50s to early 60s.

please pm me if you have one you would sell or know of one for sale, thanks for looking