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No Serial Number

This is a group of binoculars, observed in collections and recorded from sources online, of German binoculars without serial numbers or other definitive markings, but believed to have been manufactured from 1933 to 1945 as equipment of the German Armed Forces during World War II.

 S/N  C/R Mark Identifying Features  Mfg / Maintenance
240673  O
Reticle, black “Vulkanite” body covering, brass fittings, left prism cover blank, right prism cover marked “Dienstglas” over “6×30” over “240673” over “m” (mils) and “bmj” and “O” to the right, black leather Trageriemen (carrying strap). This Dienstglas appears to have been repaired and regreased with Vakuumfett 1416 “Vacuum” cold resistant grease (“O”) about, 1942, when the left prism cover (probably with the Hensoldt logo) was replaced with a blank prism cover, and the right prism cover was overstamped with “bmj” and “O”
bmj : 240673
mfg. about 19xx

“O” : 1942
no s/n
Black “rice” body covering, black Bakelit (Bakelite) rear lens fittings, left prism cover blank, right prism cover marked “6×30”, no other marks, no serial number, black leather carrying strap, black rubber eye piece protector, rain protection cover, user cap for rear lenses, believe made by Daniel Swarovski Tirol, Wattens, Tyrol, Österreich (cag) or Voigtländer u. Söhne AG, Braunschweig (Brunswick), Lower Saxony (ddx) because of the rear lens lock nuts with distinctive wrench drive slots, probably manufactured in late 1944 or early 1945.
cag or ddx : no s/n
mfg. about 1944 – 1945

 
no s/n
Black “rice” body covering, black Bakelit (Bakelite) rear lens fittings, left prism cover blank, right prism cover marked “6×30”, no other marks, no serial number, black leather carrying strap, black rubber eye piece protector, rain protection cover, user cap for rear lenses, believe made by Daniel Swarovski Tirol, Wattens, Tyrol, Österreich (cag) or Voigtländer u. Söhne AG, Braunschweig (Brunswick), Lower Saxony (ddx) because of the rear lens lock nuts with distinctive wrench drive slots, probably manufactured in late 1944 or early 1945.
cag or ddx : no s/n
mfg. about 1944 – 1945

 
no s/n
Sandgelb (sand yellow) painted body, brown Bakelit (Bakelite) rear lens fittings, left prism cover blank, right prism cover marked “6×30”, no other marks, no serial number, believe made by Daniel Swarovski Tirol, Wattens, Tyrol, Österreich (cag) or Voigtländer u. Söhne AG, Braunschweig (Brunswick), Lower Saxony (ddx) because of the rear lens lock nuts with distinctive wrench drive slots, probably manufactured in late 1944 or early 1945.
cag or ddx : no s/n
mfg. about 1944 – 1945

 
no s/n
Sandgelb (sand yellow) painted body, brown Bakelit (Bakelite) rear lens fittings, left prism cover blank, right prism cover marked “6×30”, no other marks, no serial number, believe made by Daniel Swarovski Tirol, Wattens, Tyrol, Österreich (cag) or Voigtländer u. Söhne AG, Braunschweig (Brunswick), Lower Saxony (ddx) because of the rear lens lock nuts with distinctive wrench drive slots, probably manufactured in late 1944 or early 1945.
cag or ddx : no s/n
mfg. about 1944 – 1945

 
no s/n
Sandgelb (sand yellow) painted body, brown Bakelit (Bakelite) rear lens fittings, left prism cover blank, right prism cover marked “6×30”, no other marks, no serial number, believe made by Daniel Swarovski Tirol, Wattens, Tyrol, Österreich (cag) or Voigtländer u. Söhne AG, Braunschweig (Brunswick), Lower Saxony (ddx) because of the rear lens lock nuts with distinctive wrench drive slots, probably manufactured in late 1944 or early 1945.
cag or ddx : no s/n
mfg. about 1944 – 1945

 
240673  O
Reticle, black “Vulkanite” body covering, brass fittings, left prism cover blank, right prism cover marked “Dienstglas” over “6×30” over “240673” over “m” (mils) and “bmj” and “O” to the right, black leather Trageriemen (carrying strap). This Dienstglas appears to have been repaired and regreased with Vakuumfett 1416 “Vacuum” cold resistant grease (“O”) about, 1942, when the left prism cover (probably with the Hensoldt logo) was replaced with a blank prism cover, and the right prism cover was overstamped with “bmj” and “O”
bmj : 240673
mfg. about 19xx

“O” : 1942
 no s/n  Δ
Sandgelb (sand yellow) painted body, aluminum fittings, brown Bakelit (Bakelite) rear lens fittings, left prism cover marked “cag” over “Δ” (blue, filled in), right prism cover marked “6×30”, not marked “H/6400” but has reticle, no other marks, no serial number, probably manufactured in late 1944 or early 1945, body is partially repainted, brown carrying strap is not original, Italy
cag : no s/n
mfg. about 19xx

“Δ” : 1943 – 1945