Collectible coins, also known as numismatic coins, encompass a variety of types, including historical coins, commemorative issues, and bullion coins. In the context of the United States, coins minted from the 19th century, such as those from San Francisco, hold significant value due to their rarity and historical context. The "G 40 07" designation suggests a specific grading or cataloging system for coins, which assesses their condition and quality. The relevance of F D Kohler may indicate a notable collector, dealer, or researcher in the field. Coins from the year 1850 are particularly sought after by collectors for their age and connection to specific historical events or periods in U.S. history.

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