Possibly ‘50s (could go either way) frame and fork.
Measuring up, it’s a size 58, 56.5 ctc, 120 rear OLN.
BB has an oil port, front and rear mudguard eyes.
Looks like Nervex lugs (Nervex bb), nice fork crown.
The rear brake bridge looks like it’s been pinched flat (not by me.)
The paint is very...