Upside-Down Ball Mason Jar
It’s time to look very hard at the mason jars sitting in your kitchen cabinet because some of them might be worth a few pennies. The upside-down mason jars by Ball are one of those valuable jars.
These products were only manufactured from 1900 to 1910, making their value incredibly high compared to other mason jars. This particular mason jar is considered to be a rare find, and Kate Miller-Wilson, an antique collector, says they can be valued at up to $1,000.