Mine's the same size as cigarcop's, but is a bunch older. It came out of the local jewelry store, along with several fonts. No idea how old it is, since the old couple who owned that store were very elderly when I was a kid back in the '60s. When the last owner of this store sold out, our high school bought the New Hermes & fonts for a song, intending to use it to engrave their own trophies, or so I was told. When I went in to ask about purchasing it from them, they were so glad to get rid of it that they just gave it to me.
While I'd love to have one like hero's machine, this old one works far better than the results I had trying to stamp bbls.