You may have a challenge on your hands. During '35-'36 Ford bought their speedos from at least four different suppliers. At first glance they all look the same but the "inners" are different plus the location of the trip odometer has a slightly different placement between the different suppliers. As a result of these manufacturing differences and Ford color changes replacement decals have never been produced, at least that I am aware of. The same is true for the lenses.
Tom