So I found this Ball mason 3 L bottle and the whole entire bottom looks like it has been added on and it also is not completely round as you can tell. Ive been told there is not a pontil mark on the bottom but perhaps a value mark. The rounded area is pushed out not in . Looks like an embossed v on the bottom along with a number 1. Any information would be helpful. Im thinking after 1900 but before 1910. It is also I believe a should mason top.