19th C. Token of Friendship Theorem: From a True FriendIn my book, it's always time for a valentine or token of friendship, and what a lovely one is this, From a True Friend indeed! The text appears to have been block printed, the rest done in watercolor and ink by hand (using hand cut stencils, which is how theorems were made, and, I recently learned, the paint was often blown onto the paper via a glass tube, like a straw; at least so I was told!) A lovely example, and unlike others I've seen mid 19th c.