Product Catalog
Train Set
0-4-0 Tank
2-6-0 Mogul
4-8-2 Mountain
F9 Diesel
F40PH Diesel
Alco 430 Diesel
SD35 Diesel
GG1 Electric
50ft. Double-Plug Box Car
40ft. Tank Car
50ft. Reefer Car
40ft. Stock Car
40ft. Hopper Car
50ft. Flat Car
60ft. Box Car
60ft. 3-Dome Tank Car
60ft. Reefer Car
Crane Car with Boom Tender
Operating Coal Dump Car
Log Dump Car
Hopper Car Loading/Unloading
Crossing Gate
Revolving Beacon
Coal/Gravel Conveyor
Gantry Crane
Semaphore Signal
Railroad Crossing Signal
Sure-Lock Track
Bridge and Trestle Set

Bridge & Trestle Sets

17-Pc. Bridge & Trestle Set (not pictured)

33-Pc. Bridge & Trestle Set

The Pemco catalog has this set only, while a TrainWorld sales listing from the time has not only the No.3614-"33-Pc. Bridge and Trestle Set," but also a No.3613-"17-Pc. Bridge and Trestle Set."  Though I have not seen the 17-piece set, I would assume going by its stock number and this listing of it that it very likely does exist.
Neither item is unique in its detail and appear to be direct knock-offs of the same items sold by Tyco.