17th-18th century
This square-shaped blown and molded glass apothecary bottle, and illustrated on page 24 of <i>The Squibb Ancient Apothecary Catalogue</i>, has a baked enamel baroque-style blue and yellow cartouche on its front. It is labeled <i>ESS CASS LIGN</i> in black, with the first letter of each word in red. The jar would have contained an essence of cassia lignum, or cassia tree leaves or bark steeped in an alcohol solution, which was used as a laxative.
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