PM6 is a mysterious 8 subject pin set from 1928, issuer unknown. Small at 3/8 inch diameter, the player selection included 7 Hall of Famers, one of which was Tris Speaker. Some wear is evident on this example, a bit of age-related toning and surface wear visible on the front, some light oxidation on the reverse. One of just two examples graded by PSA from this seldom-seen issue.