| | |   Antique StaticMaster. I don't remember where I got this from, but it's a old StaticMaster that expired in 1962 (you can see the date in the photograph).  That means it was made in the late 1950's, since these polonium-based anti-static brushes have a rated life of a couple of years.
 Source: Unknown
 Contributor: Theodore Gray
 Acquired: 3 July, 2007
 Text Updated: 4 July, 2007
 Price: Unknown
 Size: 2.5"
 Purity: <.01%
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