The Story of the Invention of Steel Pens With a Description of the Manufacturing Process by Which They Are Produced
THE STORY OF THE INVENTION OF STEEL PENS
WITH A DESCRIPTION OF
THE MANUFACTURING PROCESS BY WHICH THEY ARE PRODUCED BY HENRY BORE LONDON
THE MANUFACTURING PROCESSES OF STEEL PENS.
HISTORY OF THE PERRYIAN PEN WORKS.
THE PENS OF THE FUTURE
SOLD RETAIL BY ALL STATIONERS
Wholesale—Perry & Co., L'd, London
Ivison, Blakeman & Company, New York
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Transactions of the American Society of Civil Engineers, vol. LXVIII, Sept. 1910 The New York Tunnel Extension of the Pennsylvania Railroad, The North River Division. Paper No. 1151