They are more common that some collectors think. Far more common than the box cut cards of the same 2 players.
Ive owned about 12-15 of the complete magazines over the years with the cards still inside, bought 1/2 on eBay and 1/2 in antique stores back in the 1980-90s. They used to sell for far more still in the magazine, used to go well over $100, but now youd be lucky to get $50-$75.
Here is one I have for an example... (the cards slide out easily to be scanned)
