A long literature joke.
Alexandre Dumas finds himself sitting outside a cafe. Since he is hungry, he plans to order a sandwich, but he is a man of great courtesy, so he wants to order one with plenty in stock.
He gazes at the menu and sees a sandwich made of corned beef, Swiss cheese, sauerkraut and Russian dressing on rye. He asks the waiter, “How many sandwiches of this variety do you have?” The waiter responds, “3. The Number of Reuben.” Dumas decides that this is too little and looks from a different sandwich.
He then finds one with roast pork, ham, pickles, Swiss cheese and yellow mustard. He asks the waiter how much of that sandwich they have and he responds, “1. The Quantity of Cuban.”
Finally finding a sandwich he hopes that the cafe will have enough, it is ham and cheese between French Toast, he asked the waiter the quantity of the sandwich. The waiter does not know so he goes back into the kitchen to check. Dumas pulls out his notebook and writes.
While writing a contemporary sits down by Dumas. The waiter returns and says “69.” The contemporary thought the waiter was talking to another table and asks Dumas, “What is this?” The waiter responds, “The Count of Monte Cristo.”