The bikecult chainwheel archive has a grainy photo of a "Bradbury Tradesman" crankset.
(see http://www.bikecult.com/works/chainwheel.html ).
If anyone has a better photo (or actually has such a crankset) please contact me off list.
Same for the chainring at http://www.blackbirdsf.org/chainwheels/images/unknown48.jpg.
I need it for a local bike club logo.
Amir Avitzur
Ramat-Gan, Israel