The first two I purchased at the Reno air races years ago.
Flight of Eagles by Robert Tayler, signed by Taylor and Adolf Galland.
Summer of '42 by John Shaw signed by Shaw and 17 Flying Tiger pilots.
Last I got at the Warbird convention (geeks with computors) in North Carolina. Franz Stigler, Charlie Brown and Gabby were guests. Gabby was a little full of himself. Charley and Franz were very nice. Print signed by Stigler. Who was small in stature. He was shot down seventeen times with 28 victories. Two in a 262. A very nice person.