I have lots of Williams engines, rolling stock and passenger cars. They were quite affordable when I acquired them and they run great. My largest contingent is Pennsy Steam Turbines (I have 6) and Lionel knock off F-3s. The F-3 engines are double motored and were much less than Lionel originals at the time. I also have a moderate sized collection of Williams Brass locos including the magnificent Master Series NYC Hudsons. I keep my Dreyfuss Hudson in a display case next to my layout. It is truly moving art.
Rolland