Rod
By coincidence, the speaker at last evening's local model engineering society meeting was Mike Horler, the wheelwright who restored the Conestoga wagon which is now at the American Museum at Claverton. As you may imagine, he is none too pleased that it is now kept in the open.
He mentioned an excellent model built to the drawings produced by the late John Thompson. Now that you have joined the Guild of Model Wheelwrights, you have probably been pointed to a source of these drawings. The Guild web site illustrates a nice example built by John Castle. This may have been the one you saw.
We look forward to seeing your version at exhibition.
Regards
Geoff