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falconvitesse-
Heh :)
That Granby is back as a stripped frame. Boo https://www.ebay.co.uk/itm/Granby-Bicycle-Frameset-1930-s/114234890496?hash=item1a98ee1900:g:vcEAAOSwI4Veyptr
[The headset came out in 1948 so unless fork steerer was cut I think unlikely it’s 1930s, but who knows.]This is intriguing, I know next to nothing about Osgear etc. so no comment on what or how unusual it is ... https://www.ebay.co.uk/itm/VINTAGE-PRE-DERAILLEUR-GRANBY-CAMPAGNOLO-CYCLO-OSGEAR-SIMPLEX-RESILION-ETC/383560696293?hash=item594dffc1e5:g:y4MAAOSw~vZeytZh
veloham
I know everyone was losing sleep over this one, I've answered my own question by reading the article more carefully. There is ~ 4mm difference in diameter between the cups of the barrels of the solid 5/16" axle barrels and the rear barrels re-used for the drilled quick release axles.