Mayberry (b. 1949) played in the majors from 1968 to 1982 for the Astros, Royals, Blue Jays and Yankees. He had 1,379 hits, 255 home runs and a .253 batting average. He was an All Star in 1973 and 1974. He finished second in the AL MVP award voting in 1975 (to Fred Lynn).
I mailed to Mayberry on December 14 and got the cards back on April 8, for a 115-day TAT. I paid his fee of $5.00/card.