vintage glass cruet bottle red dots polka dot - Fire King? Hazel Atlas? Federal glass?

Unmarked vintage kitchen glass cruet with red dotted pattern - maybe Fire King or Anchor Hocking? maybe Pyrex? It would look great with a polka dot bowl full of salad!

This measures about 6 1/4" tall to the top of the all glass stopper. It's in excellent condition without chips, cracks, or noticeable wear to the design.