1960. unbound. 11.5 x 16.5 inches on plastic coated paper, no place, no date, circa 1960. Autographed color poster of four German fighter planes, each signed underneath by a prominent German ace who flew that type of plane. This limited edition poster titled "Four Knights" shows a side view of each plane and has signatures of Gunther Rall (Messerschmitt BF 109 G-2), Hajo Hermman (Focke Wulf FW 190 A-6), Hans Ekkehard (Messerschmitt BF 109 E-4), and Walter Schuck (206 Luftsiege). Faint damp-staining on the left side; good condition.