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 71
/Lk6\i^Q. … The Patent Ring Saw is designed for use in chair and furniture shops, and places where jig and scroll sawing isrequired. It has been in constant use for two years. But little labor is required to finish work sawed by thismachine, as the saw being thinner back of the teeth, requires but little set,…
