Praegu kuvatakse: Ühendriigid - Siseministeeriumi "pardimargid" (1950 - 1959) - 1 margid.
1951
Department of the Interior Duck Stamps - Gadwalls
1. juuli WM: mitte ükski Disain: William K. Schrage perforatsioon: 11¼ x 11
![[Department of the Interior Duck Stamps - Gadwalls, Tüüp M]](https://www.stampworld.com/media/catalogue/United-States/Department-of-the-interior-duck-stamps/M-s.jpg)
