In the centre of the photo the German coaster MARTHA AHRENS.
Built 1939 by Stader Schiffswerft, Stade (Germany), yard no. 139 for Adolf Ahrens, Bützfleth.
GRT 218, DWT 310. 1950 lengthened in Stade, then 247 GRT and DWT 395.
1965 TILLA DORIS, 1969 sunk on the Elbe river after collision with the EL