Historical name Current Names Current name Litharge Records Library / Place of Edition Title Source title Year Appendix B 1950 UNKNOWN 1892 UNKNOWN 1892 The French or Clichy Process, by Thénard 1874 UNKNOWN 1839 UNKNOWN 1835 UNKNOWN 1831 UNKNOWN 1830 UNKNOWN 1830 UNKNOWN 1829 1 2 next › last »