WRW - hey shipmate, I knew that it was a little late to be MPC but why should we care when you got yourself a GREAT 2-dome.
Here is a piece of MPC that I used on SwSat today. Its from 1970-72 so its "early" MPC. Its hard to see, but if you look at the small rectangle near the boiler front it shows the word "Lionel" and the MPC logo together. Later in the MPC era, they didn't show the MPC logo as much I suppose because they were trying to take advantage of the Lionel name, which after all is what they paid a license fee for.
Best wishes
Don