  Lead crystal fragrance lantern. 
Lead crystal isn't really crystal, it's just glass (which is defined specifically as not being a crystalline material).  But it does actually contain lead, and is normally described by its percentage of lead (more is better, because it gives a higher index of refraction and thus more sparkle, which is attractive to humans and magpies).  This one is 24% lead.  (Yet still completely transparent, isn't that amazing?) 
Source: eBay seller effusionality 
Contributor: Theodore Gray 
Acquired: 28 February, 2009 
Text Updated: 1 March, 2009 
Price: $31 
Size: 8" 
Purity: 24%
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