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Posted at December 31, 1969, 6:00 pm: If the glass is "suppose" to be clear and not colored, then the tinge is probably from the chemicals used in manufacturing it. The glass may have had the color from the time it was manufactured, or it may have developed over time, based in part on what elements it has been exposed to. I'm not sure what in the glass would give it the tinge you are referring to, but glass made prior to 1915 had manganese in it and when exposed to sunlight the glass turned lavendar, the more sunlight the more lavendar to purple it turns. Some collectors of glass from this time frame consider the glass ruined. Other collectors seek out "sun purple glass" http://www.patternglass.com/this_color_purple_99.htm HTH LouRuby Lane Stuff CyberAttic Stuff Original of the message was taken from http://www.auctionbytes.com/forum/phpBB/ Previous Post: I have a question, being new! Why does some glass have a sort of brow... Next Post: Lou, That's really interesting. |