Help using nkilgariff to identify Claud Butler frame model (number and pictures in thread)

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headlugs NERVEX Ref. 15/159

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seat lug NERVEX nozzle cut Ref. 159

pump pegs Cyclo

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bottom bracket shell NERVEX "Series Legere" nozzle cut Ref. 159

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dropouts appear theymay be Agrati

housing stops NERVEX Ref. 871

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blades clearly "relaxed" - should go to framebuilder to be reset

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Definitely a Holdsworth Claud, early (‘59-‘60?) with those stamped drop-outs, not a high end frame. Not original paint.
Estimated value these days? Maybe £50? Do it if you love it, but beware, spend £400 on a proper baked enamel paint job plus £50 worth of correct decals and although you will have a very nice frame, it’ll only be worth £75
 
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Definitely a Holdsworth Claud, early (‘59-‘60?) with those stamped drop-outs, not a high end frame. Not original paint.
Estimated value these days? Maybe £50? Do it if you love it, but beware, spend £400 on a proper baked enamel paint job plus £50 worth of correct decals and although you will have a very nice frame, it’ll only be worth £75

thank you! 👍 ;)

one thing which twigged it as lesser to my eye is the welded crown

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This frame #4308 looking at "Kilgariff" site predicts to 1960 and is thus shortly after takeover of Claud Butler by Holdsworthy in 1959 and the Nervex Siere Legere lugs point to this being the Coureur model. The Coureur was built with plain gauge 531.

The eBay example the OP links to with the "1961" Claud Butler has the same lugs, making it also a Coureur and the year given appears accurate as serial jibes with the Kilgariff/David Scrimshaw prediction table.

It has been several years since I gave my 2p towards model ID and contributed to the development of David Scrimshaw's serial prediction tables, particularly wrt to CB numbers after take over by Holdsworth. But, from what I remember wrt the C.B. Coureur model examples, for the early years of 59-61 the Coureur had a slightly different version of Siere Legere lugs compared to what was used susequent to 1961 as in this 1963 Coureur thread; https://www.retrobike.co.uk/threads/1963-claud-butler-super-coureur-restoration-project.433611/
 

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Can't read my own prediction table!

Actually dates to tail end of 1959, so could still be a 1960 model. Often next year's models started production in the fall of year before.,
 
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