*The first release had two half-circles on his hands. All later releases had full circles.
The collection numbers on the card fronts refer to specific assortments. One for Rebels, Two for droids and creatures, and Three for Imperials, although that numbering scheme isn't always adhered to. *Source: Star Wars: The Action Figure Archive
The original version of Boba Fett (Green Card) was noted as Collection 1 and later changed to Collection 3.