GREEN Vaseline DEPRESSION GLASS "Spill Proof" Salt Shaker - 1930's, Perfect!

This is from the estate of a friend's mother. She was a great collector of Depression Glass. This is in good condition. I will be listing many Depression Glass items over the next weeks. This is as follows:
This is a cool piece, very unique! It measures 2 3/4" tall. It is a spill proof salt shaker with a plunger top. Great condition.
Thanks for looking and !