The HappiTime name was used through 1955, then they went to Allstate. Sears did have a special arrangement with Marx. They got some things first. The cast wheels and roadbed track were Sears exclusive for a time before being available to others. As Gary mentioned, the E7 in orange and black and the light blue S2 with their matching bay window caboose carried the Allstate name. Also there were blue Allstate 2 & 3 dome tank cars and Allstate gondola's. These are fun due to the wide ranges of blue they can be found in. The dark blue is the most attractive to me.
Here is a video of me showing my first O set, Allstate set 9625.
http://www.youtube.com/watch?v=t2koMifH4Xk
Steve
