Anyone have any knowledge about this frame? It is the same frame (not the actual one) that Alexi Grewal rode to gold on in the 1984 Olympics. Some believe that he rode a Monetllo SLX but it was indeed the Arco LA84. This frame has aerodynamic tubes from Columbus (commonly known as Columbus Air) opposed to the round SLX tubing, additionally the Montello did not come with the chain stay bridge as the Arco did (also note the tangs, they are top/bottom instead of side/side as the Montello). I have been advised that this frame is extremely rare but I have yet to find anyone that can tell me how rare (how many built and/or still might exist). Please let me know if you have any knowledge about this frame, I have feelers out to Pinarello directly but have yet to hear from them, I have also reached out to others (museums, USBHOF, Alexi, other forums, etc.) but have not been able to come up with exactly how rare this is.