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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 ...
A mixed collection of postage and revenue stamps, dating from 1849-1884 held in 7 volumes. The inspectors’ Specimen Books of impressed revenue and postage stamps for the period 1885-1964 in 10 volumes. The Registers of impressed revenue stamps and dies from 1916-1964 contained in 7 volumes, and the Secretary’s Specimen Book of Irish Dies.
Small stamps were commonly powered by water wheels and larger ones by steam engines. Californian stamps were based on Cornish stamps and were used for the Californian gold mines. In these stamps the cam is arranged to lift the stamp from the side, so that it causes the stamp to rotate. This evens the wear on the shoe at the foot of the stamp.
The "Threepenny beaver" stamp of 1851. The postal and philatelic history of Canada concerns postage of the territories which have formed Canada.Before Canadian confederation, the colonies of British Columbia and Vancouver Island, Prince Edward Island, Nova Scotia, New Brunswick and Newfoundland issued stamps in their own names.
Each stamp was hand engraved in what is believed to be steel, and laid out in sheets of 200 stamps. The 5-cent stamp is often found today with very poor impressions because the type of ink used contained small pieces of quartz that wore down the steel plates used to print the stamp. On the other hand, most 10-cent stamps are of strong impressions.
About 120 are specialized stamps from the US Specialized Catalogue. About 1180 are used stamp images that Scott is replacing with mint images in the general world catalogues or are poorly centered stamps that they are replacing with F to VF centered stamps. Only a handful of black and white images are left in the world catalogues.
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