My First Perfume Bottle

I picked this up today at a flea market for my vanity and I am so excited. Unfortunately I know nothing about bottles and really want to get some more info about it. The lady I bought it from said that it was probably from the 40's or 50's and really got me interested in figuring out where it came from and how old it might be.

There are no markings or labels at all. It's about 5 1/2" tall and 3 1/2" at it's widest. I don't know much about different types of materials but it seems to be some kind of glass or crystal. I'm really hoping that someone can give me any kind of info even if it's just to help me better identify it ( like maybe what terms best describe it.) Any ideas would be greatly appreciated. Thanks.