Less-frequently seen 1928 issue, the W502 set from 1928 is fascinating, containing a number of back variations and scarcities.  Though the blank-backed cards are the most common, the issue itself is certainly not plentiful, as PSA has graded fewer than 450 cards from the set in total.  This example has been graded GOOD 2, with stronger eye appeal than the assigned grade.  Corners are square and centering is strong, the card suffering from some mild surface wear that reduces the numerical grade, as well as some light wrinkling, and a small spot of what appears to be paper loss along the top edge of the reverse.