During the 1970s, Rivarossi released a few plastic O Scale locos is kit form. Motorizing kits were offered later. First was the Casey Jones (IC) 4-6-0, followed by an IHB 3-cylinder 0-8-0 and two 4-4-0 locos based on the Virginia & Truckee Reno & Genoa. I think the main difference between the two latter locos was the shape of the smokestack. These four, plus a few European prototype items, were all imported by Associated Hobby Manufacturers (AHM) of Philadelphia. I do not recall any advertising for a USMRR version of the 4-4-0, and my guess is that someone repainted one of the V&T models. Can you tell if the parts were colored at the factory?
The two real V&T 4-4-0 locos still exist. The Reno (#11) is at the Old Tucson movie town in AZ. Fitted with different stacks & paint jobs, it has appeared in many western movies. (Example: "Joe Kidd" with Clint Eastwood.) The Genoa (#12, non-opertional) is at the CA State RR Museum in Sacramento.
