These are round all the way to top with slight indented top and lip. The glass is smooth to touch but not holding up to light. There is a seam on each side going all the way to top. The inside bottoms are flawed. There is a number 1 on bottom of one bottle and a number 4 on bottom of other which tells me they may been in a set. The bottom of bottle edge is ribbed. That's the only marking on these bottles. They look like mini old milk bottles. Any help please.