18 oz. JELLY BELLY GLASS JAR Gourmet Jelly Bean Air-Tight Lid Read Ad

I received this as a gift and forgot it on the shelf after I ate the jelly beans. The front graphics are scratched. (See picture). On the bottom there is something I cannot scratch off. Maybe something was baked into the glass when it was made? I can't figure out what it is. I can feel it but can't remove it. Please see pictures for reference.