The magic words "Saxon Twin Tube" have brought me to have a look at an
electric auction, and lo and behold the frame is pre-WWII from what I know.
Apart from everything that has been said to date it, it has a short "seat tube", which makes it a genuine Saxon. These were built only in 1939 and 1940, as I have been lead to believe by several sources, one of them a catalogue copy I have. The later Claud Butler versions had a
longer seat pin sleeve, or whatever you would like to call it.
Also, the tell-tale "button"-shaped seat stay top points at the late thirties. Then again, there´s no headclip.
If anyone would like a comparison, my own TT is on wooly somewhere under .../toni. Large pic in the starostneradost folder. (No, I´m not
renaming this folder - the speakers of Russian among you will know why.)
Regards, Toni Theilmeier, Belm, Germany.