This jar is adorable in person! It is a reproduction of an early Mason Jar, and has the date "1858" in raised letters in the glass. The metal lid is glued on. You may be able to remove it if you heat it up but do that at your own risk. This job should only be done by an adult with tongs, hot holders and very hot water. I know I wouldn't have cared when I was a little girl whether there was actually something in it or not.
So cute, and the perfect size for the 18" American Girl doll. 2-1/2 inches tall x 1-1/4 inches at widest point.