Emil R. Retzlaff was a major shipping company founded in Stettin, (now Szczecin) in 1898.
[1] The company went bankrupt in 1931.
[1] The business was also involved with the shipbuilders Ostseewerft AG.
[1] The company flag consisted of a blue saltire on a white background.
The initials E, R and R, also in blue, were placed in the 2nd, 3rd and 4th quarters of the saltire.