I just posted a Question about Putnam on the bottiom of one of my 1870's beer bottles a few weeks ago, Can't remember what kind of response I got? LEON.
Just PUTNAM on the base is the closure patent as far as I know and could have been made in any number or glasshouses going back to the 1870's.This is my third writeup (though shortened considerably) and if fails I'm done. []
Thank you, I found some information on the "Putnam Glasshouse" from Ohio which did operate in the 1870s.Perhaps they shortened the manufacturing embossing to only "Putnam".
I'm not familiar with that but patent 1606 from 1859 may support it. http://www.google.com/patents/USRE1606This was re-registered a few times I think and was used into the 1900's.