Wow, that map is very different from the one I used. I used the 1981 Green cover B3. Is that map from the Orange cover or is it from a later edition redo, 4th Edition version perhaps.
Oh apparently the version I have got pulled from the shelves back in the early 80's. Here's a dropbox link to that original orange version. www.dropbox.com/s/d2hyoi84309n…