yeah i forgot about the vintage forum and thats a good idea, sheldon has pictures of the 10 different drop outs, so i'll check that....
the frame must have been repainted so there are no marks or anything, i will find a picture here in a second...
about the bottom bracket threads, i am not savvy enough to know the difference. I was kinda hoping there was was just some magic search engine that could tell what year and make/model by the serial.