An online 1943 Digital Map of the Cologne area (which is square wF of the Nord de Guerre Zone) can be found here:
https://digitalarchive.mcmaster.ca/i...acrepo%3A27070
When your cursor is on the map you can use the cursor to drag the map around or zoom in or out with the mouse wheel. 4 small circles appear in the upper left corner of the map when viewed in the viewing window. These circles can be sometimes hard to see. Clicking the 4th circle moves the map to full screen, for a much better view. You can also use the mouse to drag and to zoom the map in this full screen view. Use ESC to close the full screen view and return to the window view.
The value in this map lies in the fact that it has the grid lines marked in purple. The various locations given in the G-2 reports can be located directly on the map rather than using the
http://www.echodelta.net/mbs/eng-welcome.php
site and the location translator. However, it is also useful to get an idea of the accuracy of the co-ordinate translator. At the bottom of the translation screen it says:
“Note : the imprecision of the determination is evaluated between 5 and 30 arc-seconds (this corresponds to an imprecision varying from 150 to 1000 meters on the field).”
To check on how accurate the translator is for locations on this map, let us compare the “location” of wF480480 as given by the map above with the location given as by the echodelta co-ordinate translator.
First, looking at the map, find the intersection of the horizontal and vertical “48” gridlines.
It appears to me that that location is about at 50.827353N, 6.999083E, (see red balloon) as given on this Google Maps.
https://www.google.com/maps/place/50...353!4d6.999083
(I think I can identify on the 1943 map Kirchstrasse and below it Uferstrasse both in red which helps find the location.)
So wF480480 is at:
50.827353N, 6.999083E
Now use the echodelta translator for wF480480 on the Nord de Guerre Zone. It converts to the location:
50.82909N, 6.99874E
https://www.google.com/maps/place/50...2909!4d6.99874
The difference in the two “locations” for wF480480 is about 200 meters.