I was lucky to see the original D day landing map, at nearby Southwick Park a few days ago. If you look carefully at the photos I am reflected, and the map is behind me filling the entire wall. Facing the map is a massive oil painting by Norman Wilkinson recalling the scene on the day – but what really caught my eye were the framed up sketches made in his small books at the time (5×7 inches I guess)- I have photos of just two. Hope you can make this all out.
So much history surrounding the map. It was secretly made by Chad Valley, as part of a whole N Europe coastline, and the relevant section not constructed until onsite; whereupon the construction workers were retained at Southwick to preserve the secret location of the exact landing site until the landings had taken place!