The product is a vintage Grob Umstadt (a city in Germany) liquor bottle probably made between 1960- 1980. It is made of stoneware with a unique salt glaze. Stamped on the bottle are city buildings, adding to its collectible and decorative appeal.  There is an incised mark also on the bottle,possibly a makers mark and appears to be 0.7 liter. There are 2 tiny knicks as shown in the pictures. This piece would be ideal for someone interested in distillery history and /or German history.