Any idea what years these were manufactured? Were they made in the late '70sI did some research a while back and guessed it to be an Alco 425. It is a Tyco. For whatever reason, most of Tycos 425s were numbered 4301. My first locomotive was the Silver Streak version.
According to a post I found on Google, yes in the 70's, but doesn't mention a specific year. Clicking on the reference, took me to an ebay.com.au (Australian) site. He had two for sale, another Alco similar to that one and what looked like an RSD-15. AU$40 for the pair. Shipping no doubt would be horrendous.
#4301 must have been the stock road number for that model, whatever RRd it was. I see this one in the auction has a red&silver scheme, with a UP shield on the nose and Silver Streak on the side ??? Multi tasker perhaps.