Just addressing Michael Downey's question as to the source of the phoney Dienstglas.
My theory is that they are based on post war 2 Japanese binoculars .The base being Japanese 7x50 military spec with coated optics. The phoney examples appear to have a few additional parts to add an air of respectability :
(i) eg. the distictive WW2 era bmk objective covers (square bases), and
(ii) the ocular adjustment rings appear to be German pattern too .The WW2 Japanese ocular adjustment rings were usually a cross hatched pattern.
I attach a link to a current Ebay offering for a set of St Moritz - Made in Occupied Japan .
Ebay number 390421780722 or check this link: