The ship 130feet long, with a beam of 23feet. She had a depth of 9feet. She was assessed at, . She was powered by a triple expansion steam engine, which had cylinders of NaNinches, NaN0NaN0 and NaN0NaN0 diameter by NaNinches stroke. The engine was built by J. C. Tecklenborg, Geestemünde, Germany. It was rated at 50 nhp. It drove a single screw propeller.[1] It could propel the ship at 10kn.
Mark Brandenburg was built as yard number 365 by J. C. Tecklenborg, Geestemünde, Germany. She was launched on 6 April 1921 and completed on 24 August. Owned by the Hochseefischerei Groß, her port of registry was Wesermünde. She was allocated the fishing boat registration PG 313, and the Code Letters KRFB.[2] On 26 November 1921, she was sold to the Emder Hochseefischerei. Her fishing boat registration was changed to AE 122. On 17 June 1926, she was sold to the Deutsche Seefischerei. Her fishing boat registration was changed to HC 177. On 21 March 1927, she was sold to the Cuxhavener Hochseefischerei. On 8 March 1929, she was sold to the Nordsee Hochseefischerei. On 24 January 1930, Mark Brandenburg was renamed Fischereidirektor Lübbert. In 1934, her Code Letters were changed to DHHX.[1] On 4 November 1935, Fischereidirektor Lübbert was renamed Düsseldorf. On 12 April 1937, her fishing boat registration was changed to PC 177.
On 8 August 1940, Düsseldorf was requisitioned by the Kriegsmarine and designated as Schiff 13. She scheduled to take part in Unternehmen Seelöwe. On 23 August, she struck a mine and was beached at Dieppe, Seine-Inférieure, France.[3] She was subsequently repaired. On 9 July 1941, she was designated as a vorpostenboot. She was allocated to 7 Vorpostenflotille as V 710 Düsseldorf. On 9 April 1944, she was reallocated to 6 Vorpostenflotille as V 607 Düsseldorf. Later in 1944, she was sunk in French waters.
Dusseldorf was later refloated and repaired. In 1948, she became the French fishing boat Turbot. She was renamed Poland in 1949, serving until scrapped in January 1953.