Isigny defence trace 1:50,000-scale, July 43

[Simon Trew]

These are images of a defence trace, overlaid over a first edition GSGS 1:50,000-scale map of the 'Isigny' area (including what later became Omaha and Utan beaches). The information is from July 1943 and standard 'Martian' defence symbols are used. The trace is in remarkable condition, given that it is 81 years old.  I have six of these overlays, all attached to the original map, covering the area from the mouth of the Seine to the left-hand side of this map.  The traces are of historical significance as they illustrate the German defences of lower Normandy as they were believed to exist at the time the decision to invade there was taken (COSSAC plan, July 1943).  There may be copies in archives but I think it is possible these are the only surviving examples.

[CurraheeMan]

I haven't actually seen the trace paper for Isigny defenses before, just the map in its overprint form. Cool find.

 

[Simon Trew]

Thanks. I have the traces at 1:50,000 from April 1944 too (the naval orders).  They are very fragile - this paper was never intended to last 80 years. But I'll try to post some images.  But the July 1943 traces are far, far rarer, I think.  And their historical significance  - in the context of COSSAC's decision-making - is enormous.  They're possibly the most important maps in my collection.  It's also nice that they are mounted on the first edition of the 1:50,000 series (mostly) - the April 1942 print-run.  1:50,000 sheets are pretty common but almost all are later editions, at least insofar as the principal Normandy battlefields are concerned.  Glad you like the Isigny trace!