The original set that became known as the Halloween set was made by Lionel as a promotional set for the Druggists’ Service Counsel, Inc. and offered to its member stores through their Gifts Galore catalog. According to John Schmid’s excellent resource, Authoritative Guide to Lionel’s Promotional Outfits 1960-1969, 7300 of these sets were produced in 1960. The orange and black loco and the blue passenger car make this set quite unique. The set did not have individual boxes, but was displayed in a single large box. The set included a Frontier set, made by Bachmann’s Plasticville, a small transformer and enough O27 track to make a figure 8 layout. It’s value is highest when the original large display box and the Frontier set in Lionel’s packaging are included. You can read more about it in the above mentioned book, available from Project Roar Publishing.
Sears also had a set numbered 79 N 09666. It was cataloged in the 1959 Sears Christmas Catalog. John Schmidt's excellent documentation of sets begins in the year 1960, so this set was not included. The catalog picture is in black & white, but the description describes the loco as " black, red and gold-color. " The set appears to be the usual General set with a yellow coach, a yellow baggage car and the short flatcar with fences and horses. I believe the flatcar might have been numbered differently than the standard one and may have been a different color, but I believe the loco and cars were the usual Lionel colors - not the Halloween colors. The set also came with an 18 piece plastic frontier outfit with windmill, building and animals. The picture also shows fence sections to coral the animals. The price was $25.89.The X646 set and the X628 set are very similar. Both were produced in 1961. One of the major differences is that the items in the X646 set were individually boxed. This is indicated by the –25 in the part numbers. The two sets have similar cars except for the Submarine car. The X628 came with a boxed 3830 Submarine car. The X646 came instead with a 6062 unboxed black NYC gondola and three orange cable reels. The Helicopter car in both sets (3410) is the manual type which cannot be operated remotely. The one in the X628 set had a box.
If you collect promotional sets from the 60s, the best book around is, Authoritative Guide to Lionel’s Promotional Outfits 1960-1969. The book is almost 2 inches thick and has all the information you would need –even exactly how the items were packed in the box. The book was published by Project Roar Publications.