An incredibly rare back variety from the M101-4 and 5 issue, the Altoona Tribune was one of several regional advertisers that used this set for promotional purposes, distributing cards with their advertisement printed on the reverse.  The cards are extraordinarily rare today, with PSA having graded just 22 examples of any card from the entire set, and SGC just 31 more.  This is the only graded card of H.B. Leonard that exists.  That it has been graded EX-MT 6 makes it one of only two cards from the set graded that high from either grading company, meaning that this is one of the two highest-graded Altoona Tribune cards in existence (the other is a PSA 6 Bob Bescher).  Light corner wear with a very slight left-to-right centering issue.  An extremely rare card, highly prized among advanced collectors.