I was searching through some 1969 Topps cards and came across an error on the back of card #5 (1968 American League Home Run Leaders). I couldn't find out if Topps had corrected this or not. Heck, maybe I'm the first to notice, although I doubt it.
You'll notice that "Powell, Balt." is listed twice. One slot has Boog listed as hitting 22 homers the other has him at 21. Checking at http://www.baseball-almanac.com/players/player.php?p=powelbo01, tells us Boog led the Orioles with 22.