Undated (1931) Hopi Prayer for Rain. Fine Silver. 74 mm x 70 mm, oval. 205.5 grams. By Hermon MacNeil. Alexander-SOM 3. Edge B. Mint State.Beautiful antique silver surfaces with a fine grain sandblast texture to the finish. One of the more popular Society of Medalists issues, this type was designed by Hermon MacNeil, known to coin collectors for his Standing Liberty quarter. From a mintage of just 25 silver impressions, and rare, as such. The original box and cards are included.From the Collection of Samuel Morse Felton, 1926-2015.