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Invert error: Part of the stamp is printed upside-down. Inverted overprint: The overprint on the stamp is printed upside-down. Color error: Stamp is printed in the wrong color(s). Paper error: Stamp is printed on the wrong type of paper which, e.g., may have a different watermark or color than intended.
Stamp paper watermarks also show various designs, letters, numbers and pictorial elements. The process of bringing out the stamp watermark is fairly simple. Sometimes a watermark in stamp paper can be seen just by looking at the unprinted back side of a stamp. More often, the collector must use a few basic items to get a good look at the watermark.
Scenes from American history, famous Americans, and traditional Christmas images are postage stamp themes frequently employing original artwork. The main references for the list are: National Postal Museum online database "Arago: Philately", [1] the Colnect Worldwide Stamp Catalog, [2] and the US Stamp Gallery. [3]
This is done to distinguish stamps with the same color, perforation gauge and denomination but which were printed on paper with different watermarks or without any watermarks—i.e., the only way to positively distinguish a 3-cent, 1908 issue, with double-line watermark, from a 3-cent, 1910 issue, with single-line watermark, is to test for ...
Portrait of Queen Victoria in her Robes of State, 1837 by or, more likely, after Alfred Edward Chalon [2] [3]. The head came from a painting by Alfred Edward Chalon, drawn for the first public appearance of Victoria as Queen on the occasion of her speech at the House of Lords where she prorogued the Parliament of the United Kingdom in July 1837. [4]
It is possible for a single-color stamp to be inverted relative to watermark, but this is called an "inverted watermark" rather than an "inverted stamp". Depending on the positioning of stamps within their sheet, the invert may be perfectly centered (as with the Inverted Jenny), or offset. Inverted overprint on a 1919 stamp of Siberia
True watermark. A true watermark is a recognizable image or pattern in paper that appears lighter or darker than surrounding paper when viewed with a light from behind the paper, due to paper density variations. A watermark is made by impressing a water coated metal stamp or dandy roll onto the paper during manufacturing.
Most of the stamps of New South Wales are readily available today, but it is somewhat complex to collect; there are a dozen types of watermarks, multiple perforations, and numerous colour shades. While the Scott catalog distinguishes about 200 major types, it calls out many more minor varieties, and the Stanley Gibbons catalog totals some 400 ...