How much is a 1964 nickel proof coin worth?
I'm curious to know, could you please provide some insight into the current value of a 1964 nickel proof coin? Are these coins considered rare or valuable among collectors? And what factors might influence their market price, such as condition, rarity, or demand? I'm particularly interested in understanding how the value of this coin has changed over time and whether there's a potential for appreciation in the future.