What makes a 1968 Kennedy Half Dollar rare?
I have a 1968 Kennedy Half Dollar and I'm wondering what makes it rare. Is it the year it was minted, the condition it's in, or something else entirely? I'd like to know more about its rarity and value.
What makes a gold sovereign rare?
I'm wondering about the factors that contribute to the rarity of a gold sovereign. Is it the age, the mintage, the condition, or some other factors that make these coins hard to find and highly valuable?
What makes a 1979 dollar coin rare?
I have a 1979 dollar coin and I've heard that it might be rare. I'm wondering what specific factors or characteristics make this particular coin stand out as being uncommon or valuable.
What makes a 1976 Eisenhower Dollar rare?
I have a 1976 Eisenhower Dollar and I'm wondering what makes it rare. Is it the year it was minted, the condition it's in, or something else entirely? I'd like to know more about its rarity and value.
What can trigger swarming?
I'm curious about the factors that can cause swarming behavior. I want to understand what specific conditions or stimuli might lead to this collective phenomenon.