Featured EAPG Compote (sun-purpled) ID?

This has considerable sun-purpling. I know that some people consider that damage but, in this instance, I find it quite attractive. The compote stands 12 ¼” to top of lid’s finial and is about 7” side to side. Foot measures about 5 ½” across the tab feet, about 4 ¾” across between the feet. The stem is hollow. ID?

 

It's very lovely !!
& purple is the flavor of the month !!!

 

Adams & Co. 'Clear Ribbon' c1881
too bad it's 'sun purpled' tho' some do like it that way...

 

Thank you, Tallcakes!

 

Without looking it up - glass in the 1930's was made with magnesium in it and the sun turned clear glass slightly purple. I collect lighting rod balls that have turned a slight shade of purple -

 

Hi Rayo,
The manganese was first used commercially in 1906 to make clear glass. The sun purpling was first done by the sun and natural like your lighting ball collection. I have several glass door knobs that have sun purpled. Back in the 70s people started to fake purpling and made some really dark things.
greg

 

as I understand it: up to the time of the Civil War flint/lead glass was the prevalent clarifying agent in glass. As the increased need for lead was diverted to the war efforts other clarifying agents began to be used in glass, and this is the time manganese started being used. This explains why black light test may help in differentiating EAPG era glass from later reproduction, as other clarifying agents (like selenium) began being used around 1915 at the end of the EAPG era. Manganese was/is still used by some glass makers, so the black light test isn't a panacea for determining EAPG.

 

Hi TallCakes,
Thanks for the "clarification". I always was taught that the manganese was used as an additive to canning jars. It just stuck in my memory.
greg

 

The primary source of manganese was Germany. When we entered WW1 it was no longer available and other clarifies were fond.

 

Here is an article about the purple window panes on Beacon Hill Brownstones in Boston. The panes date back as far as the early 1800's.

https://www.citywalkingguide.com/boston/purpleglass

This article has a photo of some of the glass panes.

http://www.bostonmagazine.com/property/blog/2015/09/23/purple-windows-boston/

 

Very pretty. People out there seek out sun purpled.

 

for purple lovers, just change the name to "Purple Ribbon"...