Up for your bid is a very intriguing and seldom seen Three tier advanced model designer construction set. There is no date on the instruction manual but it is made of the same plastic that I have experience with: developed in mid 20th century for household items and costume jewlrey. It is also the same plastic used in some models by Bachmann Brothers Indus tries. This set was on display at 2015 A. C. Gilbert convention in Atlanta, for those interested. Judging from the art graphics and character of the set, this would be a 1950's era toy, not before. The tool chest appearance, and the heft of the box, indicates that this was developed as a heirloom toy, built to last. The low occurrence in market is evidence that this toy line never caught on. This auction is for the advanced building set collector who wants to go deeper into seldom seen toy variations. Its fun to create with too, with its alternative instrumentality (interesting little steel tools and pins). Thank's for looking, and please visit my other auctions specializing in more astounding mid century toys and electric trains.
NO REASONABLE OFFERS WILL BE REFUSED. .. SOME UNRESONABLE ONES MAY BE O K , TOO