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Daguerreotypes Ambrotypes and Tintypes

da guerre o type Image produced on a silver-coated copper plate. Sensitizing agent:iodine,developing agent:mercury. Invented by Frenchman Louis-Jacque-Mande Daguerre Introduced 1839 Peak-years 1852-1854 Waned 1858-1860 Am bro type: Negative image produced on a glass plate,viewed as a positive by the addition of a black backing. Sensitizing agent:Silver nitrate;developing agent:pyrogallic acid.Invented by Frederick Scott Archer (Britain) and popularized by James Cutting (United States). Introduced 1854 Peak years 1857-1859 Waned 1861-1865 . Tin type (also called melainotype and ferrotype):Negative image produced on a thin iron plate,viewed as a positive due to undercoating of black japan varnish. Sensitizing agent:silver nitrate:developing agent: pyrogallic acid. Invented by Hamilton Smith. Pattened by Peter Neff ( united States).Introduced 1856 Peak years 1860-1863 Waned 1865-1867 The last tintypes to be contained in cases were produced around 1867,marking the end of cased images. Tintypes were produced in various other forms until about 1930. Share Follow Me on Pinterest