Variation B: Identical to Variation A, but came with No. 2466WX tender, and it has a BLACK Keystone on the front with WHITE number "6200" heat-stamped. (1946)
Variation C: Has an on-board directional unit whose lever protrudes though the top of the boiler and a single worm drive motor that is labeled "LIONEL PRECISION MOTOR" that no longer has the jacks. The Keystone is a RED numbered "6200" decal on the front of the locomotive, and the No. 2020W tender has a whistle that has a plastic housing, and came with all of the railings that were on the previous issues. (1947)
Variation D: Similar to Variation C, but with blackened steel rims on the drive wheels and came No. 2020W or No. 6020W tender. (1948)
Variation E: Similar to Variation D, but without steel rims on the drivers. (1948)
Variation F: Identical to Variation A, except the motor brush plate is made out of Bakelite and is RED in color. Manufactured in late 1946 and early 1947, these brush plates are also found on the No. 726 Berkshire’s and No. 2332 GG-1’s.