Your FW is in amazingly good shape. I believe there are replacement decals available from some source, and either Glenn or Steve on this board would be able to provide you with that information. Unless the decals are exactly the same as those originally applied to your machine, I would not replace just the front decals. The decals on the back and the ends are in very good shape. Unless you can match the decals exactly, personally, I would want to remove the decals and replace all of the decals on the bed of the machine . That being said, I am NOT an expert. Read the tutorial Glenn has posted,
Cleaning and repairing the Shellac clear coat on Vintage sewing machine heads. If you have any questions, I'm sure Glenn will be glad to answer them for you.
Jeanette