Collectible coins are often classified into various types based on factors such as historical significance, rarity, condition, and demand among collectors. The United States has produced a wide range of collectible coins, including coins from different eras, denominations, and commemorative issues. The G 40 07 grade typically denotes a specific condition in the grading scale, while F.D. Kohler may refer to a particular mintmark or designer associated with a coin from 1850, a year notable for various issues in U.S. coinage history. Collectors value these coins for their numismatic appeal and potential investment value.

Item Denomination Series Year Mint
(1850) G$40.07 F.D. Kohler Ingot G$40.07 F.D. Kohler 1850 San Francisco