This is an aftermarket product imported from overseas. It's the product you all know. It's the design from the period known as the "Spa Logo," up to the mid-60s. There are various fonts for the "Jazzmaster" part of this type of decal. I think this one is quite close to the original. This is a water-slide decal. As shown in the image, it's already cut out around the letters, so you can remove just the letters by soaking it in lukewarm water. Please search for how to use water-slide decals on your own. How about using it for repairing a guitar headstock?