This lovely silver Rule is 12 inches long. It has marks from 1 to 12 inches. The pointed end has slight scuffs. It was made in London in 1910 by S.S.D.E.D. & marked Drew & Sons. Piccadilly Circus. London. It can also be used as a letter opener.
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I have been dealing with antiques for over 45 years. I have a special interest in medical and optical items. The earlier the better for my collection. I used to sell in Portobello Rd & Bermondsey Market, I now can be found at Newark & by appointment .