Produced by the prominent Conly Photographic Studios of Boston, a gorgeous studio photo of the Hall of Fame pitcher and outfielder.  The cabinet features a striking image of Clarkson in full uniform, in a pitching pose.  The photographer credit and player name are prominently printed on the mount, along with a copyright date of April, 1888.  An ornate Conly Studio logo also appears on the reverse.

Having spent the 1884-87 seasons with the Chicago White Stockings, Clarkson's contract was sold to Boston for $10,000 on April 3 of 1888.  The April 1888 copyright date on the mount makes this an extremely early photo of Clarkson with his new team - perhaps the earliest photo to picture him in his Boston uniform.  Clarkson would remain with the Beaneaters for five seasons, his 33-19 record helping the club to a first place finish in 1891.  One of the great pitchers of the 19th Century, Clarkson was inducted into the Hall of Fame in 1963.

The card itself is wonderful, with a bold, crisp image and outstanding contrast.  The mount itself remains in outstanding shape, clean and bright, with no sign of foxing or staining, and very little edge and corner wear.  A few very small, stray ink marks on the reverse account for the MK qualifier assigned by PSA, overall a very strict assessment. 19th Century cabinet photos picturing Hall of Famers remain exceedingly desirable among advanced collectors; this example is one of the finest and best-preserved specimens we have encountered.