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 94
tm m (c, < Itetf ft tJt< lljtf i!t jttf f^ N l^ii\efy (^fiiidei^ ^^o. 3. … This grinder has a one and five-eighths steel niandiel (for wheels with one and one-half mmdrel hole), and willrun wheels to thirty-six inches diameter, and is designed for heavy work.
