Gold Coast map from page 42 of the "Rand McNally-Cosmopolitan World Atlas - Centennial Edition, 1856-1956"
Yes, with all the border changes and town name changes, it is very useful to have a world atlas from pre-WWI, between the wars, and post-WWII. Used book sales often have these volumes quite reasonable. I paid $1 for the volume scanned above.
While used singles may have a modest value off cover, finding contemporary uses on nice covers can be very challenging.