Adams, John D. (John Duncan), 1879- · Chicago : Popular Mechanics Co · leaf 59
BROOCHES 53 over a gas flame until the solder flows freely all through the connections. Wash with soap and water, and then apply the verdigris solution, the formula for … Fig. 25 — Pin Stems and Fastenings for Brooches which was previously given. After rubbing up the high lights, a coat of lacquer completes the brooch.
Metal-work · Etching
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten04unit-14-0.webp)
