[Jens Andersen]

Dear Ross

Thank very much for your answer - sorry about the late answer, but I thought I would get a notice per mail.

With help from one of my friends (a former RDAF colonel) I had found out the way the system was constructed, and I have been able to unveil the codes of some eight of the grids, e.g.:
MBAQ = 57 N, 11 E (Triton, 11.4.40)
JSGD = 58 N, 10 E (Triton, 9.4.40)

However, that is not enough to make a good plot of the submarine patrols.

I therefore would be very thankful, I you will help me to find the map. It is quite frustating to have do a lot of work to deduce the positions, when you know that the map must be somewehere (and probably loads of copies).

Best regards
Jens