I guess it is the mount for a kick stand. European commuters had them often mounted at the chain stays directly behind the BB, which are blocked by the fat clamps at your bike.
Dirk
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Dirk Feeken
Heidelberg
Germany
anyone care to offer any thoughts on the bracket-like piece thats cast as part of the bb shell on my caminade?
its visible in these 2 images:
http://www.blackbirdsf.org/
http://www.blackbirdsf.org/
chain tensioner? some sort of early bb-mount derailleur thing? the bike is 1945 or earlier, im guessing by the tax plaque that was on it.
-joel