Thanks for all the info everyone! Will be sure and get some better pictures up soon. Yes there is a faint seem. At the break the glass is almost 1/4 " thick on one side and almost thinner then a coin on other. I always i.d that more so as something I have seen with pontil shards and not the later more uniform glass. Plus the wrinkle under neck looked too crude for late 1800s, my 2 cents