What's the context?
A. Are you considering buying one? Can you share the link to a listing?
B. Or do you have one and need to sell it? Can you share a picture or size info so we can help you date it?
C. Or do you have one and want to gather info about it? Share a picture and/or size info and we can probably help with that too
D. Or do you really needs a comprehensive manufacturing record for all batches of Betty Foy (and Yves Gomez?). Or not manufacture, but sales records for all moments in time where Rivendell Bicycle Works had them available for purchase. Or something even more comprehensive like the marketing run up for the first batch of Betty's through to the marketing announcement of the next version of step through, the Cheviut.
We can probably help piece the story together for any of the above, although D would probably need the most direct help from Rivendell.
Bill Lindsay
El Cerrito, CA