The P-47D 'SNIFFLES' that Simon shows is different. Looks familiar though? 358th FG?
The P-47D, serial 433526 "U" has marking on the rudder trim tab which might be a clue. 511th FS 405th FG had similar markings on the trim tab. Look here
http://wing.chez-alice.fr/USAAF/405t..._511th_FS.html and look at P-47D photo 'Sierra Buck' has similar markings looks like to me.
The Yak 3's were from the Normandie-Niemen and if I remember correctly after the war the Russian's gave the French pilots the Yak 3's that they flew when going home. Again going by memory on this.
Thanks for sharing