"The man who wrote it was presumably well to do," I remarked, endeavoring to imitate my companion's processes. "Such paper could not be bought under half a crown a packet. It is peculiarly strong and stiff."
"Peculiar--that is the very word," said Holmes. "It is not an English paper at all. Hold it up to the light."
I did so, and saw a large "E" with a small "g," a "P," and a large "G" with a small "t" woven into the texture of the paper.