ELECTRO TYPING FOR AMATEURS. 1*5 … bago, is then placed face down- FIG. 28. — EXAMPLE OF BUST MOULD, Plaster of Paris of the finest de- SHOWING ARRANGEMENT OF LEADING wards on the hot mixture, and scription makes a good mould when wire system. C, Cathode Rod. some heavy weight placed on it. the object will not stand pressure. When…
Industrial arts · Handicraft
Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.