SteelNipple
Dirt Disciple
It's a Favorit F1 Super Special. What really threw me off was the metric sized tubing.
I'll take a punt at a Swedish 'Crescent'
My 1989 Crescent Chess 92316 had sealed Shimano BB marked 1.370x24 but both cups were right-hand thread...-----
if t'were an MCB product shell would be metric/"french" thread rather than BSC
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Crescent had French thread BB shells up until late '70s/early '80s; but I think they may have had some frames made in other countries that had BB shells not having French threads during the same time that French threads were being utilized on other frames. I pretty much assume that none of their frames utilized French threads after the mid '80s.My 1989 Crescent Chess 92316 had sealed Shimano BB marked 1.370x24 but both cups were right-hand thread...