Collectible coins can encompass a variety of types, including elongated coins, which are created by rolling or pressing a coin to stretch and imprint a design, making them popular souvenirs. One example is the elongated coin commemorating Martin Dow from 1939, which may have unique designs or inscriptions. Coins from the United States of America, including their varied designs and historical significance, often attract collectors due to their cultural heritage and investment potential.

Item Denomination Series Year Mint
(1939-40) New York M&D-16, Ford Building Ny Ms Other / Varied Elongated Coins - Martin & Dow 1939 Unknown