Ditunjukkan sekarang: Amerika Syarikat - Jabatan setem itik dalaman (1970 - 1979) - 1 Setem-setem.
1979
Department of the Interior Duck Stamps - Green-winged Teal
1. July WM: Tiada Corak: Peter Cocci Perforasi: 11¼ x 11
![[Department of the Interior Duck Stamps - Green-winged Teal, jenis AO]](https://www.stampworld.com/media/catalogue/United-States/Department-of-the-interior-duck-stamps/AO-s.jpg)
