I believe john deere used donaldson air cleaners also. I know Minneapolis moline did. Most JD dealers will know where you can get decals or find a john deere collector. R-M Distributors sells a donaldson decal with the same info and color as the oval one but it is a rectangle about 2x3 inches. I have an older magazine, but they were $1.00 each $4.00 each order for shipping. I have not ordered recently but have had good luck in the past and they have nice decals. Sorry I do not have a picture.
Henry
R-M Distributors
3693 M Ave.
Vail, IA 51465
712-677-2491