Flown schematic carried into lunar orbit aboard the Command Module Odyssey during the Apollo 13 mission, 20 x 10.5, signed and flight-certified in black ballpoint, "Flown to the moon on Apollo 13, Fred Haise, LMP" and "James Lovell, CDR Apollo 13." Originating from the CSM Systems Data flight manual, with tab marked "DC Distr-Cntl," and lower legend identifying it as “Electrical Direct Current Distribution & Control Sys,” the schematic diagrams the flow of electricity from the fuel cells through the batteries. In very fine condition.
