1931 USA, SOM #3 Issue, Hopi Prayer For Rain Oval Medal by H.A.MacNeil. Silver: 70 X 73MM. 7 oz. Or 213.7 gms. Mintage: 25. Obv: 5 Hopi Indian dancers enacing the prayer for rain, 2 with venomous snakes in their mouths, under stylized clouds, reminiscent of Native sand art printing. H.A MacNeil inscribed on the bottom right. Rev: A dynamic design of dancers running to return the snakes to their dens as the lightning and rain begin.