Nobel Prize–winning physicist who was the first to isolate the electron and measure its charge. Four signed items: a vintage 7 x 9 photo of Millikan, signed in blue ballpoint; a 1951 TLS on California Institute of Technology letterhead promising to send a photo and accompanied by the original mailing envelope; an ink signature on an off-white 5 x 3 card, and accompanied by the original mailing envelope; and an ink signature clipped from a letter, and accompanied by a letter of transmittal from Millikan’s secretary. In very good overall condition. RRAuction COA.
