Here's an insulator that very rarely makes itself available to most any collector.CD 121 WGM Co in a heavy milky royal purple.LOTS of milk swirls, waves and veils in whole insulator plus in dome and VVNM condition, just a few tiny pin pricks from mint. Milk shows a lot better in person or baselighted with daylight or proper baselight system. Book says value is $1,250.More pix on req. No need to upgrade from this one. First mail to me....I have talked to a Denver/Western specialist and while this one is very milky, it's not opaque jade milky purple which is what the priceguide lists as $1,250.Since that is the extreme end of milky purple that is listed, I am going to adjust the price accordingly. WAS $685 NOW.... $360 shipped USA/CANADA, other countries I will assist with shipping.