Ditunjukkan sekarang: Amerika Syarikat - Jabatan setem itik dalaman (1950 - 1959) - 1 Setem-setem.
1956
Department of the Interior Duck Stamps - Common Mergansers
1. July WM: Tiada Corak: William K. Schrage Perforasi: 11¼ x 11
![[Department of the Interior Duck Stamps - Common Mergansers, jenis R]](https://www.stampworld.com/media/catalogue/United-States/Department-of-the-interior-duck-stamps/R-s.jpg)
