Claud Butler frame Id, type and year?

[malan]

Frame weighs appx 5lbs, forks 790g...26.2/.4mm seatpost...dropouts f 100mm,r 125mm....no fork lamp boss...serial 000282....looked at info here, indicates 1970's? Any info appreciated...

 

[Guinessisgoodforyou]

I read the number as 1976.
https://nkilgariff.com/frame-numbers/

 

[juvela]

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pillar size suggests three main tubes 531 plain gauge



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