Night Owl Cards

I came across this card the other day while reorganizing some Score cards. See if you can tell me what's wrong with it. If you aren't hindered by Mariners-Brewers blindness like me, you probably spotted it right away. But if you are, then it's been 25 years and you're just discovering this now. It's actually a relief to me that there are other people who get the Mariners and Brewers mixed up. I thought it was only me, thanks to the similar color schemes for each team over the years, the fact that they both share Seattle histories, and that Brewers players always end up playing for the Mariners and vice versa. This card is an error card. But it's an uncorrected error card (UER in your handy, archaic price guide), so it's not worth more than a few pennies. I discovered this error just as the weekly #CardChat on Twitter was discussing error cards last week. If you're not familiar with CardChat, it's a fun little Q&A thrown out to collecto...