Cream color official International League baseball having been signed by (24) members of the Montreal Royals Minor League team who were the Brooklyn Dodgers affiliate in the International League. Most notably, the baseball includes the signature of Jackie Robinson across the sweet spot who was preparing for his historic April 1947 MLB debut with the Brooklyn Dodgers as the first African American player in league history. Robinson signature remains vert bold rating 8 out of 10 in black fountain pen. Remainder of autographs are signed in either blue or black ink to include Dixie Howell, Lew Riggs, Al Campanis, Herman Franks, and manager Clay Hopper. The 1946 Royals finished first in the International League behind a 100-54 record. The moment Jackie Robinson sent foot onto the field in New Jersey on April 18, 1946 he became the first African American to appear in an organized MLB related professional baseball game in the 20th century. Minor League team signed baseballs of this time period are seldom offered in any condition with the superior condition grade of the offered from Robinson's debut season placing it squarely among the most significant ever offered at auction. Includes LOA from PSA/DNA (8 NM-MT): Ball: NM, Signatures: Range NM-NM/MT