The barges of the Czechoslovak Elbe Navigation Company according to a CIA report dated 30 July 1951

An item reported that the Czechoslovak Elbe Navigation Company, Prague, Czechoslovakia operated around 250 barges with on the prow the letters CSPL followed by a number varying between the 195 and 645. Their crew numbered 4 men and the tonnage varied between 600 and 1.100 tons.

Source
The report was published on www.archive.org, document number CIA-RDP82-00457R008200260013-3