All-lowercase Motter Ombra, with initial and final letters that were hyper-extended to form a frame around the four featured photographs, for a poster advertising Poseidon.
First issued under this name in 1962, Poseidon was a magazine about all things maritime. In addition to sailing, diving, underwater photography or sealife, this also included naval ships. After all, it was published by the Militärverlag der DDR, the military publishing house of the GDR.
The logo on the magazine itself never used Motter Ombra. In 1978, shortly after this poster was made, a new design featuring Antique Olive was introduced. For more facts and images, see poseidon-archiv.de, a dedicated website maintained by Marko Wargulski.