I would agree except for the Continental headset [shown below] which was not normally seen in this country before the mid 50's, although it was well known in the Continent & the UK by about 1947.531db wrote: I have a 1946 Super Elliott with dropouts, I'd say this frameset is 1946-51.
I seem to remember someone telling me that you brought back with you, from your recent overseas trip, an early post war 'Hobbs of Barbican' frame & it probably has a Continental headset too. I'm as jealous as hell.
My 1937 Carbine Pacemaker was built with an Osgear system from new & it uses regular road type dropouts, probably because these Cyclo dropouts didn't exist then. Note that the illustration of the Osgear shows regular road dropouts, so it possibly pre-dates the Cyclo & Super Champion ones.
Super Champion also made their own dropouts for this system. [see pic]
Incidentally, if anyone has ANY Osgear parts I would be most glad to hear from them. I have almost all of a complete system, but some parts are a bit 'ordinary' & I want to restore this Carbine just the way it was.
For those who think that this is a funny system, note that it was the most popular & widely used derailleur in the world up untill the early 50's & could still be bought new in the early 60's [old stock] There were millions in use before WW2.