According to George Urdang, author of The Squibb Ancient Pharmacy Catalogue, the two "eagles" flying toward the sun indicate that this jar was made for the orphanage pharmacy (Waisenhaus Apotheke) in Halle, Germany. Urdang also states that the manufacturer of this particular jar and 1991.0664.0231 can be attributed to the Globsow glass works, dating from about 1775.
The bottle is marked ESS ASAR. Asarum is also known as Asarabacca and Hazelwort. The rhizome's roots and leaves are used to make tonics, cathartics, and diuretics.
The Deutsche Apotheken-Museum in Heidelberg, Germany has very similar containers from the same Waisenhaus Apothecary. This blown glass bottle with a round stopper is illustrated on page 22 of the Squibb Ancient Pharmacy Catalogue. It is a similar decoration to 1991.0664.0230.