CENTRAL ASIAN STATE RIVER SHIPPING AUTHORITY.

The original pennant is white with a red border, two crossed blue anchors, a red crescent and lettering described as USSR. Victor Lomantsov dates adoption to the 1920s. Željko Heimer questioned the reported SSSR lettering, suggesting it might be a misreading of SARP; this remains unresolved.

The later version omits the crescent. Lomantsov saw this in 1970s magazines and thought it remained in use into the 1990s.