These models date back to the 1960s. The wheels and chassis are metal. The couplers are body-mounted Rapidos. The same metal chassis was used in Con-Cor's later Extended Vision caboose.
The model is based (more or less) on a Southern Pacific class C-30-4 prototype.
Known roads - Undec, SF, SP, GN, PC, PRR, BN, NYC, B&O, Southern, C&O, UP, Chessie, IC, N&W, D&H, MR, CB, RI, Conrail, CB&Q, DRGW, SP Merger, SF Merger, CSX, Family Lines, CP, NS, L&N, Amtrak, EL, WP, WM, Clinch, Soo, GM&O, Xmas, CN, RI (old)