The post about the Bob Unglaub got me thinking about other "unique" poses in T206. Here are the ones I found:
Al Burch (batting) & Joe Lake (NY) – Only cards with Statue of Liberty in background (not unique, but noteworthy)
Hal Chase – Only player holding an award or trophy
Joe Doyle (NY) – Only off-center caption
Joe Dunn- Only “diagonal” pose

Ed Konetchy (fielding) – Only card with a base visible
John Titus – Only facial hair
Bob Unglaub – Only lace-up uniform
Edited to add one more I just found:
Tom Needham - Only catcher wearing a chest protector, but not a facemask
Are there any others that could be considered "unique"?
Steve