as a target. There are two scales ; one side being Engineer's (feet, lOths and lOOths), the other Architect's scale, (or feet, inches and 8ths). Price $8. When Rod and Level are ordered together they will be furnished for S25. WM. T. COMSTOCK, Manufacturer, 6 Astor Place, NEW YORK. ^" Full… … "HOW TO KEEP BOILEBS CLEAN." Works : Grays, Essex, England. Book published by J AS. F. HOTCHKISS, 84 John Street, NEW YORK. New York Office, 7 BOWLING GREEN. Mailed free to any address.
Engineering
Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.