This unique collection from the Franklin Mint features a set of sterling silver miniature locomotives. Crafted in 1977 and composed of 0.925 fineness silver, each piece weighs 1.7 grams and has a total precious metal content of 2.9 troy ounces. The items are from a well-known and reputable mint, with letter of authenticity and letter from the mint stating the mistakes in the two pieces. Also included the two correct pieces mailed with the letter after the fact.