I was trying to get a better idea of the manufacturing date of this particular model 65.
I found this statement on another forum.
Ulrich Eichstädt
Before 1972, when the first (after-war) german gun law was introduced, it wasn't necessary to number airguns like firearms (some manufacturers did, others didn't). Also the early FWB pistols (before 1972/73) don't carry the "F in pentagram"-sign, which is required now to show that an airgun has less than 7,5 joule muzzle energy (around 5.5 ft/lbs, only in germany).
Although it wasn't really necessary to mark the "F" on air pistols (and air rifles) for export, it is possible that due to the more easy way of manufacturing that all models are marked.
So IF you have a FWB 65 with an F, it was made after 1973 (the year the F-mark was used first, even though it was introduced before)
The quote "RA" in the e-mail's head stands for Rainer Altenburger, the sales manager (and co-owner), who surely knows what he says (but of course he could make mistakes, anyway, too...)
My pistol serial number 30307 does have the F mark shown on it so it could be around 1973-1974 as it is a lowish serial number.
F-Mark
http://i699.photobucket.com/albums/v..._0830Large.jpg
Serial Number
http://i699.photobucket.com/albums/v..._0833Large.jpg
Thanks
Mark