Ditunjukkan sekarang: Amerika Syarikat - Jabatan setem itik dalaman (1960 - 1969) - 1 Setem-setem.
1966
Department of the Interior Duck Stamps - Tundra Swans
1. July WM: Tiada Corak: Howard C. Mildner Perforasi: 11¼ x 11
![[Department of the Interior Duck Stamps - Tundra Swans, jenis AB]](https://www.stampworld.com/media/catalogue/United-States/Department-of-the-interior-duck-stamps/AB-s.jpg)
