Single sheet, approximately 20 x 34cm. Sent to commanding officers at all Pathfinder Force (PFF) stations and squadrons. Provisional analysis of operation No. 205, 14th January 1945 on Saarbrucken railway marshalling yards. It gives information on the plan of attack for Mosquitos to drop target indicators. It also covers the weather, defences and comments on the success of the raid. Following the PFF marking, 134 Lancasters of 3 Group attacked the target without loss. The paper is yellowed and has creases, dog-eared edges and minor tears. Overstamped 'IMMEDIATE SECRET NOT W/T'. Stock code P27183-68.