I hear the collective sighs. There are some REAL variations here. And there may be more.
There are 2 known Washington National variants from the Series 1 set (cards #123 & 126). There may be more, but my usual searches did NOT find others. Expos are [a] versions and Nats are [b] versions.
Additionally, while researching the Expos/National variations, I found other actual variations as well. In the Series 1 Star Rookies subset, it appears UD created "Future Stars" out of a few of the players (212, 217, 218, 228, 229, 243, 249, & 250). Further investigation led me to discovering that the Future Stars (FS) variations were (c) 2005, while the Star Rookies (SR) versions were (c) 2004, therefore, I made the SRs the [a] version of the number and the FSs are the [b] versions.
Please note that the Future Stars/Star Rookies variation is more than the foil on the front, but it's also in the actual printing on the back.
As always, you may wish to look in your collections to ensure you have the correct card logged, and now that you know there are variations out there, if you discover any others, please alert us by submitting an inaccuracy report.
-- Dan --
Note: Please see my profile for more info regarding trading (section updated 3/4/2024). I have added a large portion of my inventory to the site, and currently have trading turned on (details are in my profile).