PRINS LINE.

The first flag is blue with a yellow lion statant. Brown 1978 may also attribute it to Lion Ferry, but Rosanoski finds the wording unclear.

Prins Line was formed by a German consortium and Lion Ferry A/B for the Harwich–Hamburg service. The Germans handled marketing as Prinzen Linien. Following Lion Ferry’s liquidation in 1981, the line was sold to DFDS.

Germany, Hamburg; Sweden, Halmstad.