I had some press-on letters about 3/4" high laying the office from another project. I put "D" for the dreadnought, "K" for koa, "B" for baritone, "12" for the 12-string, and "14" for the 414. These letters are stuck on the Taylor nameplate. Didn't need to label the GS, as it is the only brown Taylor case in the herd. I had to label them after I showed up for a jam with a guitar I wasn't expecting. It is tough to play for over two hours on a 12-string.