Big Sam Thompson was one of the game's first great sluggers, with a whopping (for the time) 126 career home runs.  His 166 RBI in 1887 was a record that stood until it was broken by Babe Ruth in 1921, and at the time of his retirement he was second on the career home runs list.  Additionally, Thompson was part of the only all-.400 hitting outfield of all time, alongside Tuck Turner (.416), Ed Delahanty (.407) and Billy Hamilton (.404).  The card pictures Thompson with Detroit, dating it to 1887-88.  Graded VG-EX 4 (MK) by PSA, the eye appeal is extremely strong, with a clear, well-defined image and very little surface and edge wear.  Some light soiling is visible on the reverse, likely responsible for a slight reduction in technical grade, as the card does boast an EX appearance.  A small "X" written on the top of the reverse accounts for the qualifier assessed by PSA.  It should be noted that this is the very card pictured as the exemplar for card #456-1 in The Photographic Baseball Cards of Goodwin & Company.