This album contains photos of the covers to the National Geographic Map Indexes. It contains images of all my collection (90) plus 2 not in my possession. More photos will be added when they become available.
Not counting the first index, you can see the covers evolved over time. First with the shaded seal at the top, then in the center. They were followed by a brief set of plain white covers. Then there was a "busy" period, where the covers contained images of the map and of the cover to the magazine for which it was a supplement. Finally, the end with a series of pairs of World/USA map indices.
Attached are images of the maps for which the indices were created. Also, if available, I'm attaching photos of the unshaded seal versions of the indices.
The indices are dated by map date with index year, if different, in parentheses.
As always, maps, unless otherwise specified, are courtesy of Philip Riviere.