Not a lot. Around that time shops like Ken Birds sold no name frames with the shops name on them. I had a Birds of Colindale (no relation)
The equipment is bottom end Simplex and silstar, bolt on 271/4″ wheels, Weinmann 999s etc.
However, and it pains me to even suggest you do this. That frame is a simple fixie conversion due to the long drop outs. That’s where your market might be.
The sales value of the components is almost nowt.
Other than that, clean it up, bung on some mudguards and keep hold of it.
PS if you split I’ll have the wheels and possibly the brakes.
PPS I sold a similar 70s Claud Butler, the bike wouldn’t sell, but the frame alone when split went for more than I expected for the whole bike.