The backs are similar (with a few exceptions) to the Aureus Magnus editions: six-pointed lily cross with a value in the center and inscription: Pro Prosperitate Mundi (Latin for "For the prosperity of the people") However, instead of the 980 there is a 1000 under the cross for 1000 fine silver, as well as the indication Argenteus (Latin: Silver) instead of Aureus Magnus (Latin: Gold). The average Silver weight of this coin is 1.437 troy ounce. In order to be able to offer the medals overseas, they were simply minted in silver. The pictures show the actual coin that you will be purchasing. Thank you all for shopping with us!