| National Geographic, February 1990, Monterrey Bay... |
| National Geographic Feb-Ap-May-Jun-Oct 1990 |
| National Geographic - 1990 - Complete Year |
| National Geographic - Single Issue - January 1990 |
| National Geographic - Single Issue - February 1990 |
| National Geographic Magazine Full Year 1990 Mint Cond |
| National Geographic - Single Issue - June 1990 |
| Magazine back issue NATIONAL GEOGRAPHIC Sept 1990 |
| 1990 Lot of 6 National Geographic 1990 Magazines Look |
| National Geographic - Single Issue - September 1990 |
| National Geographic - Single Issue - April 1990 |
| NATIONAL GEOGRAPHIC Vol 177 No 6 - JUNE 1990 - AUSTIN |
| National Geographic April 1990 Vanishing Wildlife |
| National Geographic, May 1990, Great Rift, Lake Malawi |
| National Geographic - Single Issue - August 1990 |
| National Geographic - Single Issue - March 1990 |
| 1 CENT National Geographic Magazine Lot 2nd Half 1990 |
| NATIONAL GEOGRAPHIC NOVEMBER 1990 THE BALTIC NATIONS |
| National Geographic - Single Issue - July 1990 |
| National Geographic - Single Issue - October 1990 |
| NATIONAL GEOGRAPHIC SEPTEMBER 1990 MANILA GALLEONS |
| 35 NATIONAL GEOGRAPHIC MAGAZINE LOT 1990 - 1993 |
| National Geographic, December 1990, Africa, Okavango... |
| NATIONAL GEOGRAPHIC OCTOBER 1990 SURUGA BAY |
| NATIONAL GEOGRAPHIC JUNE 1990 DEEP IN THE HEART OF TEX |
| National Geographic June 1990 Greenways Path to Future |
| National Geographic, March 1990, Soviet Union, Siberia |
| 3 National Geographic Magazines - 1988 & 1990 |
| National Geographic December 1990 Issue Botswana |
| National Geographic - Single Issue - December 1990 |
| National Geographic - Single Issue - November 1990 |
| Twelve National geographic Magazines from 1990-91 |
| National Geographic - Single Issue - May 1990 |
| The Emerald Realm by National Geographic Society - 1990 |
| National Geographic Magazines Jan-June 1990 Leather Set |
| Arctic Ocean map National Geographic 1990 |
| Soviet Union map National Geographic 1990 |
| Australia living fossils map National Geographic 1990 |
| 135+ NATIONAL GEOGRAPHIC MAPS 1950'S- 1990'S & MAP CASE |
| National Geographic the 90's: Jan. 1990-June 1993 (PC) |
| Lot 61 National Geographic 1990-2004 Magazine Vintage |