Here is a general guide to the value of these coins:
* 1900-1945 Liberty Head Nickel: These coins are common and are worth face value ($0.05) in worn condition. However, uncirculated coins can be worth $0.50 to $1.00.
* 1946-1960 Jefferson Nickel: These coins are also common and are worth face value in worn condition. Uncirculated coins can be worth $0.50 to $1.50.
* 1942 Nickel with a "P" Mint Mark: This coin is relatively rare and can be worth $10 to $20.
* 1950 Nickel with a "D" Mint Mark: This coin is also relatively rare and can be worth $10 to $20.
It is important to note that these values are just estimates and the actual value of a coin may vary depending on a number of factors, such as the specific condition of the coin and the current demand from collectors.