From what I can tell, there are six cards in the T206 set that feature horizontal poses: Joe Birmingham, George Mullin, Danny Murphy, Barney Pelty, Jack Powell and Harry Pattee.
I've been collecting T206s for a while now, I'd guess 25-plus years. I recall buying my first - Eddie Collins - at a local baseball card shop at a time when baseball card shops were like Starbucks, one on practically every corner.
I remember studying the players, famous or not: Ty Cobb, Rube Marquard, Red Ames, Admiral Schlei, Walter Johnson and John Titus (one of my favorites since he wore a moustache).
But I don't recall Harry Pattee. After looking him up, I realized he only played one season and only 80 games. A member of the Brooklyn Superbas. He had 76 hits, nine RBI and hit for a .216 average.
This particular card has seen better days. It appears it spent a good portion if its life in a scrapbook. Nonetheless a great poor old baseball card.