Slight addendum to the above. Bill Pope sold off the steam line of kits in the 90s I think to a guy in Kentucky who named it Babbitt Loco works or something like that. He upgraded the models with enclosed gear boxes (from PSC I think) and sprung drivers. He also added a 2-6-0 to the line with a rolled brass boiler. I don't how many of the loco kits were offered, but I have seen kits for the 4-6-0, 4-4-2, and the 4-6-2
This gentleman sold the line a few years ago (maybe 5) to I think BTS Car Shops. The owner of that company had some serious medical problems shortly after buying the line and has not offered parts or kits for sale yet. But he still mentions that he plans to on his website.
So the dies and tools still at Pope's shop would be presumably for the diesels, freight, and passenger car kits. I think Bill Pope bought the plans and dies for the Walthers passenger car kits when they got out of O Scale mfg. Keil-line bought the molds for diecast parts from Walthers. Keil and Pope worked together to market new kits from the Walthers tooling.