1: World War II led to a shortage of nickel, forcing the US Mint to change the composition of Jefferson nickels.

2: From 1942 to 1945, Jefferson nickels were made with a silver alloy due to the scarcity of nickel.

3: The silver Jefferson nickels became known as "War Nickels" and are easily identified by the large mint mark above Monticello.

4: After the war, nickel production resumed, and the original composition of Jefferson nickels was restored in 1946.

5: The impact of World War II on Jefferson nickel production altered the coins' appearance and composition temporarily.

6: War Nickels remain a popular collectible item today, showcasing a unique chapter in US coinage history.

7: The scarcity of nickel during World War II influenced the design and metal content of US coins.

8: The wartime changes to Jefferson nickels serve as a reminder of the economic and industrial challenges faced during WWII.

9: The legacy of World War II can be seen in the numismatic history of Jefferson nickels, reflecting a time of national sacrifice and adaptation.