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The small letters at the base of the matrix are founders marks. Punchcutting is a craft used in traditional typography to cut letter punches in steel as the first stage of making metal type. [1] Steel punches in the shape of the letter would be used to stamp matrices into copper, which were locked into a mould shape to cast type.
The set of wafer-like metal stamp types could be assembled to form pages, inked, and page impressions taken from rubbings on cloth or paper. [20] In 1322, a Fenghua county officer Ma Chengde ( 馬称德 ) in Zhejiang, made 100,000 wooden movable types and printed the 43-volume Daxue Yanyi ( 《大學衍義》 ).
The 7d, 8d and 9d stamps had the value indicator behind the bust. [8] 8d Vermillion 8d Light turquoise blue 6 Jan 1969 [6] 9d Dark green 8 Aug 1967 [3] 10d Drab 1 Jul 1968 [7] The background of the 10d and 1/- stamps had a gradient. 1/- Pale violet 5 Jun 1967 [4] 1/6 Blue and deep blue 8 Aug 1967 [3] 1/9 Orange and black 5 Jun 1967 [4] 2/6 Peat ...
Stamping (also known as pressing) is the process of placing flat sheet metal in either blank or coil form into a stamping press where a tool and die surface forms the metal into a net shape. Stamping includes a variety of sheet-metal forming manufacturing processes, such as punching using a machine press or stamping press , blanking, embossing ...
Australian karat stamps for gold (375) and platinum (950). Specially-made stamps used to strike hallmarks for metal, maker, manufacturing date (also known as date letter), city (or county), fineness, or assay office, to certify the content of noble metals—such as platinum, gold, silver.
1917 press room, using a line shaft power system. At right are several small platen jobbing presses, at left, a cylinder press.. With the advent of the Industrial Revolution and industrial mechanisation, inking was carried out by rollers that passed over the face of the type, then moved out of the way onto an ink plate to pick up a fresh film of ink for the next sheet.