and I am searching for the age of the cars. I have the engine and caboose of same era, but I do not see any serial #.....cars may be from different eras...Coolest: there is a Wells Fargo Bank car with gun fighters..one at each end..they see-saw up and down as a threaded disc moves...I have just recently received this treasure and it needs TLC- which I have the patience for. There is rust on all of the tracks, but not to a corrossive level. I have searched this topic for how to identify age of Lionel, but did not get a hit. Any help/advice would be greatly appreciated. I plan to resore and display the train in my 1880's home. Here is my best description of my gift: 1.The transformer is S type, and in great shape. Circa 1949- I think. 2. The Load/Decoupe component has a 4-lead wire that snaps like dry pasta- leaving the wiring intact. Does Radio Shack carry this 4-lead wire? 3. On 2 of the cars, there is a number stamp, but not a metal decal as on the engine. And THANK YOU!