Hopkins, Henry, [from old catalog] comp · New York, H. Hopkins & co. · leaf 83
OVEB A DOZEN Different Patterns. 164 FULTON STREET,NEW YORK. HOPKINS HANDY NOTES AND QUERIES. TABLE SHOWING THE AVERAGE NUMBER OF WASHERS IN A KEG OF 150 LBS., OF EACH STANDARD SIZE, As Adopted by The Association of Bolt and Nut Manufacturers of the U. S. Diameter. Size of Hole ThicknessWire Gauge.…
Metal-work · Hardware
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