125+ YEAR OLD Seminal Puzzle, the first ever "Instant Insanity" Puzzle!

Just about every puzzle collector is familiar with the "Instant Insanity" puzzle, brought to the market and popularized in the late 1960s by the Parker Brothers company.  (See here for more information on Instant Insanity.)  Well, the puzzle was actually patented (see fifth photo!) in April of 1900, and first produced in that same year as The Katzenjammer Puzzle.  Here is an opportunity to own the original version of that puzzle, in advertising form, no less!  The puzzle is complete and in excellent condition, and certainly a rarity in advertising form.  Please see all 5 photos for details.