If you are making custom tail number markings for 1:48 scale WWII aircraft, you need to purchase this decal sheet. Even though specific for P-51 Mustangs, these decals will also be of the correct size for other model aircraft.

Excellent product...I'm doing a custom job on a P-47 that my neighbor flew during WW2....the decals are high quality and look great on the model. It also comes with two versions of the lettering: solid and stencil.