Extremely rare 1988 National League schedule features an actual photograph of Hall of Famer John Clarkson, the lettering underneath the image identical to that of the N338-2 Hess "Big League" issue, to the point that some feel the Hess issue may have been produced by Conly or by the Boston print shop responsible for producing the schedule, Alfred Mudge & Son.  This piece is extraordinarily rare, with only a handful of examples known to exist, all featuring Clarkson.  The well-constructed card folds out to reveal the complete NL schedule for 1888, with the Boston schedule printed on the reverse, along with some local Ivy League games.  Not part of a set, the piece was produced as a joint advertising piece for both Conly Studios and Alfred Mudge & Son Printers, and only featured this image of Clarkson.  In a few cases, examples of the photographic portion of the schedule have been discovered trimmed away, to resemble a card. At least two such examples have made their way into SGC holders.  This example is far more desirable, because it contains the entire schedule.  The photo itself is in outstanding condition, with the schedule itself creating a finished size of 3 3/4" x 6".  The piece is printed on heavy stock, and exhibits some mild surface wear and age-related surface wear, along with some very minor corner wear and foxing, notable at the top right.  A small area on the reverse exhibits some very light staining adhesive residue, likely due to clear tape. The entire piece remains in outstanding overall condition.  Probably the finest known facial images of Clarkson, and one of the more rare 19th Century pieces we have handled, with only a few examples known.