1940s Holdsworth (probably), but no idea what model, and it's £25 so far.
Also covered in black sh*t.
https://www.ebay.co.uk/itm/355675983010
From https://www.nkilgariff.com/Models.htm
Pre WW2 all Holdsworths had clip type headsets except L'Internationale. This model was new for 1939 and had the new push-in headset cups. Clip headsets continued to be used immediately after the war. In 1946 they used some pre-war components, but they were soon used up. Bill Hurlow recalls that when he returned in Oct 1946 the first frames he made had clip headsets.
Also covered in black sh*t.
https://www.ebay.co.uk/itm/355675983010
From https://www.nkilgariff.com/Models.htm
Pre WW2 all Holdsworths had clip type headsets except L'Internationale. This model was new for 1939 and had the new push-in headset cups. Clip headsets continued to be used immediately after the war. In 1946 they used some pre-war components, but they were soon used up. Bill Hurlow recalls that when he returned in Oct 1946 the first frames he made had clip headsets.


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