I know that Fibber Mcgee is talking about the Bumpers on his 1941 Ford, but it is interesting to note that Ford also "mixed" the Bumpers on the 1942 Ford. If you look at this 1942 Ford Deluxe, you would think that it was fitted with 1941 Ford Super Deluxe Bumpers. While they may look the same, they will not interchange. I asked this question last year and this is the reply that I received from Barner Bryan:-
A stock 41 Ford Super Deluxe bumper has the two holes for the license plate mounting bracket and the factory bolt holes are 15 3/4" approximately apart centre to centre.
The 42 Deluxe bumper does not have the two license plate mount holes and the factory bolt holes are 13 1/16" apart approximately centre to centre.
Ford apparently used the 41 bumper core and simply re-stamped the holes to provide for the different grille arrangement in 1942. Simply put they spread the bumper guards wider off centre on the 42 application.
Now, I went back last night and looked at the blue 42 Ford you have pictured an did has the license mounting bracket so it could be a correct 41 Super Deluxe bumper but if that is the case I don't know what bumper irons may have been used.
I hope I have not confused you. If you are looking at bumper core for 1942 Deluxe you need the measurements and the understanding it did not have the two holes for the license plate mounting bracket.
While they look the same, the Bumpers will not interchange between the 41 & 42 Fords.