Ah, I don't know of a Julius Cöster right off, but I just do not think he was in Suhl.

But chase >>Laufverbindung Patent<< and the name on Merkel O/Us should be Waffenfabrik Gebrüder Merkel post 1916. Gebrüder Merkel was well known for O/U platforms but so was Greifelt.


Hochachtungsvoll,

Raimey
rse