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1850 (?), Hausberg Copper plate Proof, 1/2a, 2as X 2 &amp; 4as, Plate of 1854 Stamps Series, Plate IV, Excellent Condition, Extremely Rare

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Printing from copper plates is the technique of transferring to a sheet of paper, a piece of satin or any similar material the imprint of lines etched with acid or engraved, with a burin or by some other means, on a plate of copper or of wood.

Stamps are printed in different processes. Paper stamps have been produced in a variety of techniques such as letterpress, photogravure, offset lithography printing, engraving &amp; intaglio. 

Stamps in the late 1840&#39;s were&nbsp;processed through intaglio printing. Thus, even if a postage stamp issue is printed with the same design, the stamp value is not the same at all. Every printing method has slight variations during the printing process.

Delhi Specimen Two Annas stamp of 1925.

complete set of Twenty and fifty Paise and One and Two ...

Delhi Specimen Two Annas of Salmon.

Year of food and Agriculture Organisation Block of four ...

Delhi Specimen Two Annas stamp.

Delhi Specimen Stamps of King George V of 1925.

Sheet of 320 Stamps of King George VI 1943 of British I ...

One Rupee Stamp of 1892 of Indian Postage Head of the Queen

Service Overprint stamps Complete set of 1937.

Travancore-Cochin. SGNo 03. One Chakram. 'H' Lost 3rd L ...

India Postage Block of six of Three Annas of 1931.

Rare Mint Telegraph Stamps of Victoria Queen of 1869 -7 ...