ZF41 - Type 1
The first early design have no ZF41 markings on the optics.
ZF41 - Type 2
Improved version of the first design. The lens system is same as above, but they were only made by cxn (Emil Busch).
ZF41 - 1
Internally improved (simplified) version of Type 2, it has two less lenses. External appearance is similar to the Type 2, the only difference is the length of ocular cell. It is longer than Type 2 and the scope tube is shorter.
Manufacturer Codes
bmj: Hensoldt & Sohne Optische Werke A.-G., Wetzlar
cag: Swarovski, Tyrol, Austria
clb: Dr. F. A. Wohler, Kassel
cxn: Emil Busch A.-G., Optische Industrie, Rathenow
ddv: Oculus, Berlin
dow: Opticotechna G.m.b.H., Prerau, Czech
dym: Runge & Kaulfuss, Rathenow
eso: Rodenstock Optische Werke, Munich
emv: Hertel & Reuss, Optik u. Feinmechanik, Kassel
fvs: Spindler & Hoyer, Gottingen
fzg: Feinmechanik G.m.b.H., Kassel
gkp: Rufs & Co, Kassel
jve: Ernst Ludvig Optisches Werk, Weixdorf
kov: Etablissement Barbier, Benard et Turenne, Paris
mow: Seidenweberer Berga C.W.Crous & Co., Berga/Elster
cag: Swarovski, Tyrol, Austria
clb: Dr. F. A. Wohler, Kassel
cxn: Emil Busch A.-G., Optische Industrie, Rathenow
ddv: Oculus, Berlin
dow: Opticotechna G.m.b.H., Prerau, Czech
dym: Runge & Kaulfuss, Rathenow
eso: Rodenstock Optische Werke, Munich
emv: Hertel & Reuss, Optik u. Feinmechanik, Kassel
fvs: Spindler & Hoyer, Gottingen
fzg: Feinmechanik G.m.b.H., Kassel
gkp: Rufs & Co, Kassel
jve: Ernst Ludvig Optisches Werk, Weixdorf
kov: Etablissement Barbier, Benard et Turenne, Paris
mow: Seidenweberer Berga C.W.Crous & Co., Berga/Elster
Lubricant Marks
K.F.: Invarol
○: Vakuumfett 1416
＋: Instrumentenfett 1442
△: Unknown
Pictures and some information gathered and recompiled from: http://homepage3.nifty.com/zielfernrohr/index.htm
○: Vakuumfett 1416
＋: Instrumentenfett 1442
△: Unknown
Pictures and some information gathered and recompiled from: http://homepage3.nifty.com/zielfernrohr/index.htm
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