Colorless glass with abrasions. Conical, rounded shoulder, short, approximately cylindrical neck. Matte cut decoration. Coat of arms of the noble family von Dobeneck, also located in Brandenburg and Prussia, framed on the front. Crowned mirror monogram, likely by Christoph Friedrich von Dobeneck (1693-1750) with his wife Charlotte Friederike von Dobeneck, nee von Seebach (1696-1765), at the back. Border surrounding the base and shoulder. Partially tarnished. Height 17.1 cm. A Potsdam engraved glass bottle with coat of arms of the noble family von Dobeneck and monogram. Tarnished to some areas. Brandenburg. Potsdam. 1st half 18th century.