These were made by Herb Wahl in Forksville Pa. We used to go up to his shop and see the various process that go into making a repro motor. It really has to be a labor of love as the work far exceeded the return in financial rewards. Herb also made a commerative brown 60, and others classic motors like the Bunch and Hurlemann, both single and twin. I bought some of everything. My serial numbers are so low that I won't even post them. Prices have not gone up appreciably in the intervening years but can spike if there is a spirited bidding on the item. No I'm not going to post origional selling prices or current selling prices