  Apothecary jar of sulfur. 
This is an antique Apothecary (pharmacy) jar filled with sulfur.  It's obviously designed to sit with the opening facing down, since the label is right side up that way, and the other end is round.  Not sure why you'd want a bottle of powder sitting that way. 
Source: eBay seller mimidog0 
Contributor: Theodore Gray 
Acquired: 2 February, 2008 
Text Updated: 3 February, 2008 
Price: $10 
Size: 6" 
Purity: >95%
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