Material Witness: The Selected Letters of Fairfield Porter
| Country | USA |
| Brand | National Geographic |
| Manufacturer | Natl Geographic Society Maps |
| Binding | Map |
| ItemPartNumber | AD00003314 |
| Color | White |
| UnitCount | 1 |
| Format | Folded Map |
| UPCs | 749717033146 |
| EANs | 9781566956055 |
| ReleaseDate | 0000-00-00 |