That look more 80's, you got an excellent buy as the older components can be a nightmare, the newer brakes are so much more powerful, is the wheels the old 26"?
Yes, that makes more sense, the square taper steel cranks, which feels original, would have been cotter pins if from the 60s I suppose.
Front hub is proper made in England sturmey archer. Rear one's probably a more recent Taiwanese one.
That look more 80's, you got an excellent buy as the older components can be a nightmare, the newer brakes are so much more powerful, is the wheels the old 26"?