Gear's illustrated catalogue of wood and iron working machinery (1872)
A.S. Gear, Gear, A. S · Boston : Printed at A.S. Gear's printing office, 62 Sudbury Street · leaf 57
ikdl\ii|e. … This machine, for boring and mortising window blinds, the manufacturer claims, excels all other machines forthe same purpose. It accomplishes its work with exceeding dispatch, and leaves a perfect mortise free from chipsand ready for use. A mortise can be made from i of an inch to 2i inches in…
