How was this bottle made?
- Thread starter februarystarskc
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februarystarskc
Well-Known Member
februarystarskc
Well-Known Member
cyberdigger
Well-Known Member
Yeah that could be iron pontiled.. you often see the big dot in the center of IP's..
RED Matthews
Well-Known Member
Hello februarystarskcl That center dot is a venting hole. These were a drilled hole, that had to be cleaned often and the tapered tool that took the first dirt out tapered the hole, after that taper formed, they pushed a wire through the hole; so the air that is trapped between the parison and the closed mold, can escape and let the bottom of the bottle form against the mold completely. The pontil (really a punty rod), was coated sometimes by graphite and glass dust or graphite and fine cast iron dust; and some times sand. I haven't found a good book reference that fully explains the system. I do know that excessive cleaning methods can quickly reduce the media showing on the bottles.
Your bottle is a beauty! RED Matthews
Your bottle is a beauty! RED Matthews
februarystarskc
Well-Known Member
Wow, you are very knowledgeable! Sounds like quite a process. THank you for explaining. I wish there was a video.
I don't think this was a dug bottle.
Thank you Red Matthews,
-Kevin
I don't think this was a dug bottle.
Thank you Red Matthews,
-Kevin
baltbottles
Well-Known Member
Looks smooth base to me I don't see any evidence of a pontil on that one. And yes looks to be a non dug example, very nice condition.
Chris
Chris
Brains
Well-Known Member
looks similar to a smooth base soda with a dot that i have- i don't believe mine has a pontil mark. I've been calling it a key mold- the mold line curves sort of around the inside of the base in a semi circle on one half but not the other, i'm guessing yours has the same feature? My bottle is a cobalt soda from Chicago- i think it has a big WHH on it... or something
kungfufighter
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Snap case.
http://www.sha.org/bottle/bases.htm#Snap%20Case%20&%20Sabot
http://www.sha.org/bottle/bases.htm#Snap%20Case%20&%20Sabot
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