goodman1966 / Mitch Thanks for the additional pics - I'm seeing Owens-Illinois 1962 Whether they were molded that way or "stretched" afterwards is the $64 question. I'm leaning towards "molded" ???
If I understand the term "Throw" correctly, it refers to the amount of syrup dispensed from a filling machine. Based on the marks on the other examples we've seen, it appears the line on the Squirt bottle is near three ounces. And if I'm not mistaken, the only size of bottle that Squirt was using in 1941 was seven ounces. I'm not certain how much syrup went into seven ounces of Squirt, but if the test bottle line is near three ounces, that seems like a lot of syrup to me. But to be fair and open minded, the term "Graduate" also relates to measuring, as in 'test cylinder graduate used for measuring a liquid.' Hey, squirtbob - howz about conducting a little experiment and see how much liquid the bottle holds when filled to the line. If you fill it to the line and then pour that amount into a measuring cup it should tell you how many ounces it is.