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Are these insulators?

Markings on bottom are 250cc and 40mm. One is brown, the other amber. Thank you!

83B58C58-E9C0-4AEF-81C2-4E7CF9288D6C.jpeg

10B23A92-DBAD-4F61-9396-6B61186386E7.jpeg

7761ECDF-3B13-430B-B218-FDF1561AFB93.jpeg

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Message 1 of 10
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9 REPLIES 9

Are these insulators?

They look like the might be jars missing their stoppers.

Message 2 of 10
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Are these insulators?

My thought is that the  "cc" marking is for liquid if I am correct so that would eliminate the insulator theory... Steve

Message 3 of 10
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Are these insulators?

Look to me like vintage glass fly catcher thingies

 

Message 4 of 10
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Are these insulators?


@goaldeelocks wrote:

Look to me like vintage glass fly catcher thingies

 


I've looked more closely at photos and can't really tell whether yours have openings in the bottom center (which would need to be there if they were fly catchers)

 

Message 5 of 10
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Are these insulators?

I agree…..I just can’t figure out why the bottom of the jar goes up into the jar itself. I believe they are for liquid….they are certainly unique

Message 6 of 10
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Are these insulators?

Yeah, there are no holes or openings anywhere other than the bottle top. 

Message 7 of 10
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Are these insulators?


@rosetreelane2 wrote:

I agree…..I just can’t figure out why the bottom of the jar goes up into the jar itself. I believe they are for liquid….they are certainly unique


 

The raised part at the bottom is called the punt.

 

"Glassblowers used to create punts to push the seam of a bottle up, allowing the bottle to stand upright while preventing glass at the bottom of the bottle from sticking out and cutting people."

https://vinepair.com/wine-blog/why-wine-bottles-have-punts-bottom/

Message 8 of 10
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Are these insulators?

Anet insulators refer to experts specializing in insulating materials and techniques. They assess, recommend, and install insulation systems to optimize energy efficiency and comfort in various settings, ensuring effective temperature regulation and soundproofing.

Message 9 of 10
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Are these insulators?

Apothecary  jars minus their stoppers?

Message 10 of 10
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