Seal matrix and patent document, the seal is within a circular, metal tin. The document is a patent awarded to John Henry Dallmeyer, optician and is dated 27 September 1866. The patent is comprised of two large sheets attached by a small rope to a large circular seal matrix. The patent reads, “John Henry Dallmeyer of 19 Bloomsbury Street in the County of Middlesex Optician hath by his petition humbly represented unto us that he is in the possession of an invention for improvements in compound lenses suitable for photographic uses”. The seal matrix is broken and incomplete and is within a circular, metal tin. It is yellow in colour with the image of Queen Victoria upon her throne on the obverse and Queen Victoria upon horseback on the reverse. The paper is stained and coloured.
