[phutton]

There are no frames with the EXP prefix on our Register. There five with EX, but there is no evidence to suggest the factory ever used this prefix. Some 1970s/80s restorers did use EX, however. We have EX 164, 166 and 168 on the Register, but these are for bikes from 1926 to 1934.

We have EXPn for a very interesting engine, but that is the only one. We also have five EX prefix engines. The same comments apply to these as to the frames.

I hope that helps, but I suspect it doesn't!

Paul

[singleminded]

I don't have an answer for you i'm afraid..
Some sort of odd logic might suggest an EXPerimental frame.
any chance you could post a picture, it may help others more knowlegible than me..John

[Tom Snow]

This is a mid '20s (I guess) flat tank frame.

[singleminded]

Is this a flat tank machine or a later 30'type?..john

[Tom Snow]

Does the club have any information on frame numbers with an "EXP" prefix?