i can't tell you Bob
but i can say i have put them on and old PFALZ DXII WING and i will post it here. the wing is use for testing paint and techniques so it is contrasty mid green with white strips and croses and i put the decale over the top this and NO color change seen threw the decal ! i am going to try clear paper so i can offer shading under the decal . i will post it to night.
Doug