The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.
a rounded vessel of the amphora type that was common in Kievan Rus’ from the tenth to the 12th century. Beginning in the 13th century an earthenware vessel shaped like a pot with a very wide mouth was called a korchaga in Rus’.
The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.