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 266
WITH BELL TRAP Sf GRATIMG. For Yards, Areas and Stables. B§£MMM F0FK e/Vb. 21. … No. 1. 5 inch diameter on top. 2. 6 • • 8. 6i • 4. 8 No. b. 9 incli diameter on top. 6. 104 7. 13i MM tola Wti m 9 HEAVY SOLID. SOLID JOINT JAPANNED.