1850 (?), Hausberg Copper plate Proof, 1/2a, 2as X 2 & 4as, Plate of 1854 Stamps Series, Plate IV, Excellent Condition, Extremely Rare

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 & intaglio.

Stamps in the late 1840's were 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.