In the 1860's goldsmith named Ditlev Madsen Cohr opened his workshop in Denmark making silver flatware. The business was passed down to his eldest son, Carl Madsen Cohr. Brought the company into the 'modern' world with mechanical machinery. In the 1921's the company produced silverplated peices under the ATLA Silverplate name.
From then until 1981, the company was bought and sold several times. However, the last factory was closed in 1987.
Danish silver has cleaner lines, some of the most well known are based on art deco designs with unique touches.
I could not find the introduction date when Cohr first sold their Sparta pattern. From the history of the company, I assume the pattern is at least 30 years old and more likely older.
Individual Fish Knife (8 1/2 inches)
Large Serving Fork (8 5/8 inches)
Boullion Soup Spoon (5 5/8 inches)