Hi, I am very new at bottle collecting and yesterday I dug a weird little bottle I was hoping someone could identify for me. It is clear and 3 1/2 inches tall. It is a round bottle. The only markings on the base are 1-3. It is a screw top, but here is the weird thing. INSIDE the bottle is a wire attached to half ball that pushes against the opening to the bottle. You can push it down to let a little fluid out but when you quit pushing it pops back into place. I'm thinking it is 1950's or 60's because that is what most of the stuff I have been digging there is.Thanks! Lisa