If you are just visiting and found the information you were looking for please contribute to the running costs by making a donation.	Forums : : Register : : Log In : : Log Out : : Help : : Calendar : : Search
	My Setup : : Member List : : Contact Admin : : Today's Posts

All Forums >> [Bottle Forums] >> Unexpected Discoveries >> Pontiled tumbler

Page: [1]

Login Message << Older Topic   Newer Topic >>

Pontiled tumbler - 6/15/2010 8:09:57 PM    CazDigger Posts: 532 Joined: 6/26/2005 From: Central NY State Status: offline This came from a 1830-40s privy. I find tons of clear, usually smooth base tumblers, never any color. This pit had several dark aqua pressed glass tumblers (all broken) with wicked pontils. I know nothing about pressed glass. I do know that some pressed glass salts were made locally at Mt Vernon glassworks (1810-1844). Could these have been made there? I assume the pontil is there so when they fire polished the lip to make it smooth for drinking. Post #: 1

RE: Pontiled tumbler - 6/15/2010 9:51:20 PM    RED Matthews Posts: 2268 Joined: 8/2/2008 Status: offline Now that is a nice old glass.  Depending on the type of press that was used and the accuracy of the gathered and dropped in the mold, the forming process could have created an over press and he excess glass that raised up in the mold and could have had to be sheared off and then re-fired to smooth the drinking lip.  I am surprised, but the pictures tell me that it the mold was a four segment mold; producing two seams on a flat and two seams on a segment edge.  I can not beleive that it couldn't have been made in a two part mold with two seams on two pointed corners.  It must have worked better going from a hex to a round top in the same mold. The empontilling must have been done with a flat round iron puntee rod, that had glass chips on it,  If those white spots are on the glass, it would tell me that a white lead paste was used to pick up the glass flakes. I had a friend in Florida with a big collection of salts that had been collected by his wife.  He passed on and I couldn't find out what happened to the salts.  Life can be tough.   Thanks for showing your drinking glass. You said you didn't know much about early pressed glass. I know that it started in France and an employee at Sandwich Glass talked Mr. Deming Jarvis into making a glass press that was to function like something he saw his wife doing with pie dough. Jarvis even got the first patent on a glass pressing machine in America. Those green empontilled shards would be interesting to study.  RED Matthews _____________________________ http://www.bottlemysteries.com/welcome/ (in reply to CazDigger) Post #: 2

All Forums >> [Bottle Forums] >> Unexpected Discoveries >> Pontiled tumbler

Page: [1]

New Messages No New Messages Hot Topic w/ New Messages Hot Topic w/o New Messages Locked w/ New Messages Locked w/o New Messages

Post New Thread  Reply to Message  Post New Poll  Submit Vote  Delete My Own Post  Delete My Own Thread  Rate Posts