Can you help to identify these frames, bikes or parts?

Same lugs as XB3

The original lug was replaced with XB3.

My carlton flyer track has similar looking lugs, fork crown and wrapover seat stays as the before photos. I think it has a a similar (somewhat mystery) serial number in a similar place on the bottom bracket too, though can't remember for sure about an oval stamp. I can check tommorrow for you if you like?

I think it's early 70's-don't know the exact year, haven't worked that out yet for sure, but the guy I got it from claims he owned from the 70's. Those track ends look like the ones on carlton/raleigh proffessional too, and that would also explain the campagnolo parts it had too although obviously these could be added to anything.)

I doubt it being a Carlton as it seem to have different crowns. A Raleigh maybe?

Any further info is welcome. Thanks!