http://www.mtb-news.de/forum/showthread.php?p=9032380
The description seems a little weird, but you can see the headtube of that frame on one of the user's pictures and the user seems to be credible:
http://fotos.mtb-news.de/p/121814
that's what I thought too ;)
a "colorado at" also seems pretty rare, could not find any more pictures or details about the frame exept from an old serotta catalogue...
Do you mean this one?
http://www.ebay.co.uk/itm/Retro-Litespeed-Titanium-Mountain-Bike-Frame-Medium-V-Brake-Ti-26-MTB-1-/150680525719?pt=Mountain_Bikes&hash=item2315425b97#ht_2864wt_1413
The welding seems odd here: