| National Geographic May 1917 ~ Stand By the Soldier |
| National Geographic Traveler May/June 2007 |
| NATIONAL GEOGRAPHIC VOL.173 #5 MAY 1988 - WOOL FABRIC |
| National Geographic Magazine May 1924, Grand Canyon |
| National Geographic Magazine May 1978 |
| National Geographic- May 1962- New Guinea Man |
| National Geographic Magazine May 1968 |
| National Geographic May 1963 - Southwest Asia Map |
| National Geographic - Volume 147, #5 May 1975 |
| National Geographic - Volume 153, #6 May 1978 |
| NATIONAL GEOGRAPHIC VOL.159 #5 MAY 1981 - SHARKS |
| NATIONAL GEOGRAPHIC Vol. 191 #5 May 1997 India Pythons |
| National Geographic May 1967 - Eastern Canada Map |
| National Geographic MAY 1922 |
| NATIONAL GEOGRAPHIC May 1968 Finland - Nevada - Paris |
| NATIONAL GEOGRAPHIC RARE MAY 1970 |
| NATIONAL GEOGRAPHIC MAY 1979 W/ MAP OF CANADA |
| National Geographic May 1964- Shakespeare's Britain Map |
| FROGS & TOADS National Geographic May 1932 PHOTOS |
| RARE WHITE TIGRESS National Geographic May 1961 PHOTOS |