I have a sixty-year old Unertl - looks like new. I have ten El Paso-made Weavers - ALL look like new. In my little collection I have six WW1-era scopes and few from between 1900 and 1915. They are all fairly good, but the Voigtlander from 1912 beats them, although very close behind in a C.P. Goertz close behind of Berlin with the rifle number stamped on it. If you have rifle number 3285 [Gew nr 3285], and can prove it, the scope is yours. The No32 telescopic sight was used by ALL the Commonwealth snipers in WW2, not just the Australians, who also used them with great effect on the Late Hirohito's Own. My late Uncle Geoff was a sniper in the Royal Regiment of Canada, and he had a Long Branch No4[T] with such a scope. In WW2 the Germans were having as hard time again with the rubber problem, so they invented a rubber substitute - look up Buna.