Excerpt from The Brass World and Platers's Guide, Vol. 11 It was in October, 1906. That the first prae tical and extended description of ball-burnish ing methods was presented to the trade in the current issue of the Brass W'orld and Platers' Guide. Erwin S. Sperry, the journal's editor, was a tireless and conscientious experimenter. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art techlogy to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.