This official commemorative BRONZE 3 COIN SET honoring the builders of HOOVER DAM. Celebrates the 75th anniversary of the building of the HOOVER DAM (1935-2010). These Verbonze coins feature the bronze Winged Figures of the Republic by Oscar J.W Hansen and were minted exclusively for the Hoover Dam Store. They Measure 39mm x 10 guage. These coins were made in the USA.