Frederick James Fox (b 1835) started as an optician in 1845; began making photographic equipment in 1858; traded at 26 Ludgate Hill (1866-1882), 22 Skiner Street (1856-1866), and 100 Newgate Street (1856), London; from 1882 F J Cox was run by H & E J Dale; Cox is recorded as an optician in Eastbourne around 1891.