This "L-Slot" version predates the J-Slot prototype above in the internal design process, and is even rarer in absolute terms — hand-painted, hand-assembled, and never meant to leave Kenner's testing floor.
It briefly held the record for most expensive toy ever sold before the J-Slot copy above dethroned it just months later — two record-breaking sales of the same banned toy in a single year is a story that writes its own headline.
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