* Delete 16 Part 3241 Light Gray Train, Track 12V Conducting Rail Curved (match ID 1)
* Delete 15 Part 3241 Light Gray Train, Track 12V Conducting Rail Curved (Alternate) (match ID 1)
* Add 15 Part 3241 Light Gray Train, Track 12V Conducting Rail Curved
* Add 1 Part 3241c Light Gray Train, Track 12V Conducting Rail Curved, interference-free (match ID 1)
Comments from Submitter:
In my set original from the eighties there is 3241c instead of 2731a, so I believe that 3241c appears in the first production of the set, while 2731a appears in the second production.