I don't know, but it's possible one of the scans was in the wrong place and Admin moved it to the right place, completing the gallery...also...if a bogus card was incorrectly listed, and someone brought it to Admin's attention and they removed it, that would in theory also trigger the gallery completion fuction.
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!):