They didn't reveal the number but it was definitely more than one for at least some of the cards. There was a blogger who was trying to build a buyback Frankenset (one buyback of each card number from any Topps set) and he showed some appearing multiple times in his collection.
VERY slow trading due to health problems. Not transferrable so safe to trade with, just moving is painful and can't always access the cards.
Cardboard History My COMC
New Collection Website: Cardboard History Gallery (Still under construction)
Tips on how to make your scans look like the card does in hand (No more washed out, fuzzy scans!):