13.75x16.75x3" deep box contains unused set #19075 by A. C. Gilbert Co. 1950s. Box has trace of lt. tanning to white areas, dust soiling but still tight and VF. Box describes the set as "Road Racing's Greatest Thrill/Cars Change Unexpectedly From One Lane To Another." Set consists of curved and straight track sections, pair of 4" long hard plastic flyer karts, two individual accelerator speed controls and a one amp D.C. Pike-Master power pack transformer. There are also two unused thin plastic sheets of fence sections and a membership application blank for the Miniature International Racing Assn. Missing instruction sheet and decal customizing kits for the 4" long karts. Set is unused, power pack electric cord is wrapped up as issued. The plastic fence sheets show some dust soiling, insert has trace of wear but contents o/w remain Mint as issued.