Keywords: 68th Fighter Squadron Northrop P-61 Black Widow 43-8237.jpg Northrop F-61B-20-NO Black Widow Serial 43-8237 of the 68th Fighter Interceptor Squadron flying over Japan 1949 Source Credit given as USAF photo Pape Garry R Campbell John M and Donna 1991 Northrop P-61 Black Widow--The Complete History and Combat Record St Paul Minnesota Motorbooks International ISBN 0-87938-509-X PD-USGov original upload log page en wikipedia P-61-43--8237-68fis-japan-1949 jpg 2007-12-08 00 30 Bwmoll3 600×320×8 37900 bytes <nowiki>Northrop F-61B-20-NO Black Widow Serial 43-8237 of the 68th Fighter Interceptor Squadron flying over Japan 1949 Source Credit given as USAF photo Pape Garry R Campbell John M and Donna 1991 Northrop P-61 Black Widow--The Complete History and </nowiki> Northrop P-61 Black Widow 68th Fighter Squadron |