1. 1999 Pacific Coast Rain Forest (Nature of America Series) Souvenir Sheet of 10 c33 MNH Scott 3378
2. 1999 Sonoran Desert (Nature of America Series) Souvenir Sheet of 10 c33 MNH Scott 3293
3. 2005 Northeast Deciduous Forest (Nature of America Series) Souvenir Sheet of 10 c37 MNH Scott 3899
4. 2004 Pacific Coral Reefs (Nature of America Series) Souvenir Sheet of 10 c37 MNH Scott 3831
5. 2003 Arctic Tundra (Nature of America Series) Souvenir Sheet of 10 c37 MNH Scott 3802
6. 2007 Alpine Tundra (Nature of America Series) Souvenir Sheet of 10 c41 MNH Scott 4198
7. 2008 Great Lakes Dunes (Nature of America Series) Souvenir Sheet of 10 c42 MNH Scott 4352
8. 2010 Hawaiian Rain Forest (Nature of America Series) Souvenir Sheet of 10 c44 MNH Scott 4474
Sell in this package and Stamp Grades --
1. 1999 Pacific Coast Rain Forest (Nature of America Series): 4 sheets;
2. 1999 Sonoran Desert (Nature of America Series): 6 sheets;
3. 2005 Northeast Deciduous Forest (Nature of America Series): 2 sheets;
4. 2004 Pacific Coral Reefs (Nature of America Series): 3 sheets;
5. 2003 Arctic Tundra (Nature of America Series): 1 sheet;
6. 2007 Alpine Tundra (Nature of America Series): 3 sheets;
7. 2008 Great Lakes Dunes (Nature of America Series): 1 sheet;
8. 2010 Hawaiian Rain Forest (Nature of America Series) ): 2 sheets.
22 souvenir sheets, 222 stamps in total. Most are in the USPS original sealed packages.