Unique Art 1950 F7 Diesel Set
See pictures for details. In 1950 Unique Art created a highly attractive set of F-7 style diesel locomotives using a process long abandonded by most toy train manufacturers. The lithographed #2000 Rock Island RR locomotives, at 14 were longer than any other’O’ gauge diesel ever made by the likes of Lionel, Marx, or American Flyer. They were equipped with a working headlight, a single power truck and a reversing mechanism.