Lot of (2) 1915 Panama-Pacific Exposition Cards. Likely a very rare pair of cards relating to this Exposition. Included are: <strong>Invitation to the Massachusetts State House on the Panama-Pacific International Exposition Grounds. Nearly As Issued.</strong> 3.5 inches x 5.75 inches. Partial printed form on cream card, in black. Filled in to Mr. Eben Putnam, and dated June 29-December 4, 1915, apparently granting access to the exhibit for the latter half of the Exposition which ran from February 20 to December 4. Autograph signature of C.O. Power, Secretary and Member of the Board of Managers. <strong>General Calling Card for the Board of Managers for Massachusetts. As Issued.</strong> 2.5 inches x 4 inches. Full printed in black on cream card. A neat piece giving the identities and titles of all Massachusetts officials for the Panama-Pacific Exposition. Probably an extremely rare pair from this great Fair. (Total: 2 pieces)