Extremely rare Whitehead & Hoag pin dating to 1912, from a set of primarily, but not all, members of the Oakland Oaks.  The set is rare enough that it is assumed that the checklist is currently incomplete.  This example, featuring Oaks pitcher Harry Ables, is just the second example graded by PSA (with none higher).  Some light wear is evident, though the image is strong and clear, some light soiling to the paper reverse.