Lugs, BB shell, and fork crown are Henry James. The seemingly anachronistic 120 rear spacing might have had something to do with a big person who always bent or broke 6-7 spd. rear axles on freewheel hubs ?
Looks like a nicely made frame, maybe a one-off from a machinist or someone familiar with metalworking ?
To my eye, the chainstays look pretty ridiculously short for that size bike. Wheelie time on seated climbing !