Like Phil, my initial reaction was that most of those 'Pathfinder Eagles', especially the fibre backed ones were Post-SWW manufacture. I am yet to be convinced that they are not post-SWW.
Here is an wartime image of the eagle in wear by Air Commodore J.E. Fauquier, D.S.O. and Bar, DFC.
J.E. Fauquier - copy.jpg
12-7-1944 Promoted to that rank and given command of RCAF Bomber Group's largest operational base was Air Commodore J.E. Fauquier, D.S.O. and Bar, DFC of Ottawa. A Veteran commercial pilot before enlisting in the RCAF, Air Commodore Fauquier earned the sobriquet "King of the Pathfinders" for his work in Bomber Command.