Jason Clarke Antiques has dated this piece to the 1800s.

These jars were kept by apothecaries to store leeches used for the purposes of bloodletting on patients, a common practice for centuries and considered a cure for numerous health issues. The jar would have been covered with a layer of muslin to the top and secured with a piece of string around the inverted part of the rim.
Circa 1800
Jason Clarke Antiques has dated this piece to the 1800s.
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