I wonder if the buyer knew this is an incomplete set. The unmarked and unremarkable glassine envelope adds very little to the value, so the seller has to be thrilled with the selling price. (Although eBay shows the selling price to be $$259.99, it was actually $200.) There are six cards to the complete set, produced by Whitney during the 1930s. The complete set can be seen on page 273.
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Mark B. Ledenbach's vintage Halloween collectibles blog.
