Unknown2018-10-262018-10-261969-02-17EPM-065-08-002http://hdl.handle.net/20.500.11867/14421Envelope: 6.5 x 4.5 inch. Printed in full color recto and verso. Stamped and typed recto. Attached postcards: 6.5 x 21 inch. Printed in full color recto and verso."Reproduction of the original postcard set sent by Pearl Harbor spy Takeo Yoshikawa to identify fleet units at Fords Island. Many of these cards were taped to instrument panels of the attacking planes December 7, 1941."EnvelopePostcard