Hello to everyone! So I was digging through the attic and found a HO Con-Cor Santa Fe passenger train set I bought a few years back from some garage sale. There are 6 cars total counting the engine. The cars are clearly marked Con-Cor, made in USA. But there are no markings on the engine or secondary dummy engine, only a number stamped on the bottom, 42005. There are no marks or numbers on the electric motor. My question is, if I were to hand you only the engine, and ask you what it is, how would you know it's a Con-Cor engine and not something else? My knowledge of trains is very limited. The only thing I'm sure of, it's not a Lionel. The engine has a weight covering the entire electric motor, the electric motor is squareish, not round, brass colored, has brushes that can be seen, brass weights on the shaft on both ends, wobble joints on the driveshafts going to the gears for the wheels, 8 wheel drive, no wires, has flat springy steel for connections. The electric motor is set in plastic mounts that have 4 prongs that stick into the chassis. So, is this a Con-Cor engine? Thanks for any info!