Silverwork and jewelry : a text-book for students and workers in metal (1912)
Wilson, H, Bisei, Unno · New York : D. Appleton · leaf 398
an and as free from grease as you can.The pan or utensil you use for the processof coloring should be either of china orcopper, and not used for any other kindof metal or purpose. The following is aspecial preparation for the coloring ofviolet Shakudo:— Sulfate of copper, I dram or less… … Fig. 219.See page 363. 387
Silverwork · Jewelry
Internet Archive · New York Public Library · Public Domain Mark 1.0. Free to use for anything.
![An illustration from Banbury chap books and nursery toy book literature [of the XVIII and early XIX centuries] (1890)](https://img.insideoutlibrary.com/img/200/ia-banburychapbooks00pearrich-128-406.webp)
