AN AUTHENTIC SIGNED INDEX CARD BY LINUS PAULING IN DARK INK MEASURING 3" X 5" ALONG WITH A CHECK  FROM SCIENTIFIC AMERICAN DATED APRIL 6, 1959 PAYABLE TO LINUS PAULING C/O CALIFORNIA INSTITUTE OF TECHNOLOGY , STAMP ENDORSED ON VERSO BY PAULING

THIS INCREDIBLE LOT IS GUARANTEED AUTHENTIC AND OFFERED AT A LOW OPENING BID.