English pioneer of photography. He invented the paper-based calotype process, patented in 1841, which was the first negative/positive method. Talbot made photograms several years before Louis Daguerre's invention was announced.
The mon, the central red disc, is called Hi-no-maru or sun-disc. The disc is set slightly towards the hoist. White symbolizes honesty and purity. Effective date: 5 August 1854.