I got this piece some months back in a collection I bought and never knew about it till recently when I was sorting pieces. If you read the title, then yes, you did indeed see a "1" in the HEMINGRAY name instead of an I, the engraver/stamper, for whatever reasons only known to him, used a 1 stamp instead of an I stamp when stamping the mould. I have never seen one of these before and they are certainly unlisted!