@ed h posted:Palallin - Your 1972 set may be Sears set 1292, as it had just an Alco A unit powered. The rest of the rolling stock matches closely to your set. Keep in mind in the early days of MPC is wasn't uncommon for Lionel to swap out a piece of rolling stock with a different road name. I've attached the 1972 Sears catalog info.
Interesting! Thank you for that image, Ed! I have never been able to find a copy of that year's catalog. This may indeed be the right one. Never had any canisters or the uncoupler. Wish I had the box!
I have seen about a dozen boxed variations of the Double Diesel and the Twin Diesel sets from that early-'70s period. Obviously, all were made up out of the same limited selection of rolling stock. Smart use of limited assets to create the highest level of variety possible.