Kallitype

Kallitype The printing process called Kallitype was developed by W.W.J. Nicol between 1889 and 1891. At the beginning it was used with 3 variations, known as I, II and III. The recipe is similar to the Van Dyke, the base is ferric oxalate (instead of ferric ammonium citrate as in the Van Dyke) and silver […]