Small Cobalt blue bottle?

maude22

I have two 3" tall and approximately 2 1/4 wide at base and 1 1/4 wide at mouth with two small indentions on top of each side. The top is for a screw on topper.
Can anyone tell me what it is? I had hoped it was a oil lamp font.

Chris

What does the base look like?

I am thinking this is a modern item. It is possible it is part of some kind of oil lamp.