Leo was a genius for straightforward simplicity based on his one predominant character trait: He was a really cheap son-of-a-bitch. All those terrible bridges are still used today, in one form or another. They were cheap. And they must have done something right, since nothing succeeds like success, and still being in use sixty years later must account for some measure of success. The crescent file cut on the nail head was just another way for him to do "cheap". No caster decals - cheap. Nothing ever got tossed, wasted, thrown out. Custom colors were more times than not, just oversprays of existing painted guitar bodies. Wear through an Olympic white body to reveal... sunburst!