I think I've seen this bike. The seller says he got it from a former Allegro dealer in Ohio. Actually, there was a guy between Cleveland and Akron that had obtained the dealer's stock and had them all in a barn on his property. Probably a couple of dozen bikes, partial bikes and framesets, 6 or 8 smoke versions among them. I looked at them a couple of times, but couldn't do a deal. The guy told contradictory stories as to whether he owned the stuff or was just selling it for the former dealer. He also wouldn't quote a firm price, wanting to play interested parties off against each other. I lost patience with his manipulations and forgot the whole thing. I guess the eBay seller had more patience. As he said, some of the parts are not original, as the stock was mostly partial bikes. The Spidel RD is definaitely too new for this frame. I think he cleaned up the frame, as the stuff I saw, though probably NOS, was pretty dirty from poor storage conditions. This is a ltttle pricey, but might be worth it, despite a too-new part or two.
Jerry Moos Houston, TX
Handsome later Allegro. I'd be tempted if it were my size. Good pix, and a lot of info about the history of the company. Some confusion on frame size.
Pierre Dupont West of Zurich