1918 Billy Bishop Signed Autographed Winged Warfare Hardcover Book JSA LOA1918 Billy Bishop Signed Autographed Winged Warfare Hardcover Book JSA LOA 1918 First Edition book "Winged Warfare" with full JSA LOA Billy was a Canadian flying ace of the WWI. Officially credited with 72 victories, making him the top Canadian and British Empire ace of the war, and first Canadian pilot awarded the Victoria Cross JSA LOA #Z64583 5. 25" x 7. 5 Very good condition; autograph presents well with no smudging, bleeding or fading, book shows