Duplicating Memorandum Book
This memo copy book features a swinging link which consists of a U shaped frame comprised of two opposite sides and a third side connected at a right angles. The sliding clamp is arranged to bear against the third side to removably bind the transfer sheet and itself.
GalleriesOther Office Supplies and Equipment
Government Printing Office The Official Gazette of the United States Patent Office (Washington, DC: Government Printing Office, 1895)