“FLYING JET RING" PREMIUM RARITY FROM UNKNOWN SPONSOR.
2.25x4.5” original paper container has ink notes on blank back including 1951 date. Front shows how to assemble and use the ring. The “Jet” is actually a flying saucer shaped disk that fits on a blue plastic ring base that has extended vertical prong. A black cord, still unused on its paper, is used for launching. Envelope has general age but no tears. The three ring parts are Mint. Only the second we’ve seen.
Pictures (click images to zoom in)