| #C133/50 Scenic American Landscapes - Air Post | |
| USSMC133 | #C133 48¢ Niagara Falls, N.Y. |
| USSMC134 | #C134 40¢ Rio Grande National Park |
| USSMC135 | #C135 60¢ Grand Canyon National Park |
| USSMC136 | #C136 70¢ Nine-Mile Prairie, Nebraska |
| USSMC137 | #C137 80¢ Mt. McKinley, Alaska |
| USSMC138 | #C138 60¢ Acadia National Park, Maine |
| USSMC139 | #C139 63¢ Bryce Canyon, Utah |
| USSMC140 | #C140 75¢ Great Smokey Mountains |
| USSMC141 | #C141 84¢ Yosemite National Park, Calif. |
| USSMC142 | #C142 69¢ Okefenokee Swamp |
| USSMC143 | #C143 90¢ Hagatna Bay, Guam |
| USSMC144 | #C144 72¢ 13-Mile Woods, N.H. |
| USSMC145 | #C145 94¢ Truck Bay, Virgin Islands |
| USSMC146 | #C146 79¢ Zion National Park, Utah |
| USSMC147 | #C147 98¢ Grand Teton National Park, Wyoming |
| USSMC148 | #C148 80¢ Voyageurs National Park |
| USSMC149 | #C149 85¢ Glacier National Park |
| USSMC150 | #C150 $1.05 Lancaster County, PA |