If we’ve heard it once, we’ve heard it 100’s of times … this is rare and so it’s valuable, right? There are no 1964-D Peace Dollars known to exist — and thus if one surfaced, there would be tremendous demand to own and thus some value.
But what about that picture of your grandfather standing on the beach in Hawaii in 1936? There’s only one of these pictures so it too is very rare, but is there any value? Not necessarily.