Unfortunately, this is merely a carefully trimmed middle from a somewhat common diecut set. Six comprise the set, all encircled with a decorative, starred border with a crescent moon on one side. The entire set can be seen on page 184. As a remnant, the value is maybe 10% of what this buyer paid.
Mark B. Ledenbach's vintage Halloween collectibles blog.
To quote a line from 1942's film, Kings Row, "Where's the rest of me?" Being merely a remnant, this has no collectible value.