Hello.
Käte Grammerstorf x- Ditmar Koel. 5088 brt.
Call-sign. DHFF.
Build at Richmers Werft in 1915.
K. Grammerstof struck a mine and sank on May 22nd,1941,
12 miles S. of Heligoland.

Ditmar Koel x- Tallin. 4479 brt.
Call-sign. DKGA
D.Koel was sunken December 7. 1944 at 23.29 hour in
Bjørnefjorden by two Norwegian MTB.
D.Koel was in convoy togehter with D/S Alk and escorte
was M 5113, M 5114 and UJ Brahe. D. Koel sank in two
minute and 36 of the crew was kill.
D.Koel is laying in pos. 60*08.712 N - 05*15.8064 E
in water deep of 310 to 390 meter.

Best regards
Øistein.