Before revision: In 1868, Puscher reported on the application of multicolored or lustre patina based on sodium thiosulphate and lead acetate for the first URL Retrieved 7.02.
After revision: time ( contemporary recipes for that patina uses copper compounds instead toxicIn 1868, Puscher reported on the application of multicolored or lustre patina based on sodium thiosulphate and lead acetate for the first URL Retrieved 7.02.