Very nice Conti. I'll add my 2 pennies about the build if that's okay. The brake levers are post 1963 possibly 1965 issue. Shifter levers are later post 1966. The rear derailleur looks like the 64 Sprint with the riveted on tag. Need close ups. What's inscribed on the front derailleur cage and clamp? Sprint? What's inscribed on the freewheel, Sprint? Beautiful bike, and for sure very interesting.
I have a 1964 Coppertone Continental and I don't remember it having any pins on the top bar. I'll have to pull it out and see if I can find any traces of pins.