Hi Andrew,  Congratulations on your new acquisition.  Your Hammond
player piano, serial nr. 22759, which according to the plate was
made by the Straube Piano Co., was manufactured in 1915.

According to "Pierce Piano Atlas 10th Edition", 1915 started with
serial number 22500 and 1916 started with 24500.

  "Straube Piano Co., 630 S. Wabash Av., Chicago, Ill.  Factory at
Hammond, Indiana.  Est. about 1859, made Straube, Hammond Woodward
and Gilmore; Division of Continental Music Co.  Also made organs
about 1878."

Jack M. Conway, Los Angeles, California, USA