Mislabeled by SGC as an uncatalogued strip card, presented here is a 1928 W502 card of Red Faber.  About half the cards from the W502 issue were produced with blank backs, as is the case with this example.  The remaining examples were printed with game play information on the reverse ("home run," "three bagger," "two bagger," or "one bagger").  The blank backs likely represent outs in the game play.  The cards, produced by an unknown manufacturer, are relatively scarce today, rising in popularity as the 1920s photographic issues finally get their due.