Sorry about this poor photo, but here's the close-up of the piece on the left in the previous photo. Notice the round blot behind the "N". Also, the under-score line in "No" has been engraved twice, once short, and once long. One more thing, the "1" in 12 appears to have been re-engraved big and fat. But wait, that "1" looks like it was engraved with a prismic style chisel. Am I splitting hairs here? You betcha.