Where is this conversation taking place?

W: I enjoy going through secondhand bookstores, don’t you? It’s interesting to see what people used to enjoy reading. Did you see this old book of children’s stories?
M: Some of these books aren’t so old, though. See? This novel was published only six years ago. It cost seventy-five cents.
W: Hey! Look at this!
M: What? Are you getting interested in nineteenth-century plays all of a sudden?
W: No. Look at the signature. Someone gave this book as a present, and wrote a note on the inside of the front cover. It’s dated 1856. Maybe it’s worth something.
M: Everything on that shelf is worth fifty cents.
W: But if this is the signature of someone who is well-known, it might bring a lot more. I hear William Shakespeare’s signature is worth about a million dollars.
M: Oh? I can hardly read what the one says. Who wrote it?
W: The name looks like "Harold Dickinson". Wasn’t he a politician or something? I’m going to buy this book and see if I can find a name like that in the library.
M: Good luck. Your book of plays may make you rich, but I’ll bet my seventy-five cents novel is a better buy.