The art of the palladium rounds is unchanged from its introduction. The classic Lewis and Clark, Corps of Discovery design adorns the obverse. The reverse depicts a single buffalo, a symbol of the American West frontier. The finely detailed palladium round appeals to collectors as well as investors. The specifications of all of the palladium rounds are as follows: coin diameter thickness purity 1 Troy Oz 38.1 mm 2.28 mm .9995 1/2 Troy Oz 30.0 mm 2.16 mm .9995 1/4 Troy Oz 25.0 mm 1.40 mm .9995 1/10 Troy Oz 19.7 mm 1.09 mm .9995
