Seal of Montana
The Great Seal of the State of Montana. The seal shows Montana and a shovel, pick, and plow symbolizing agriculture. The state motto is 'Oro y Plata' meaning "Gold and Silver."
William Dwight Whitney The Century Dictionary: An Encyclopedic Lexicon of the English Language (New York, NY: The Century Co., 1911)
Courtesy the private collection of Roy Winkelman