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Stamps with two colors ("bi-colored") began to appear very early, although typically reserved for higher values, due to the added expense of multiple print runs. Multicolored stamps appeared along with the development of color printing techniques; they now account for the majority of modern stamps, although single-color designs are still common ...
The 1869 Pictorial Issue is a series of definitive United States postage stamps released during the first weeks of the Grant administration. Ten types of stamp in denominations between one cent and ninety cents were initially offered in the series, with eight of these introduced on March 19 and 20, 1869 and the two greatest values being distributed somewhat later. [1]
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.
Scans from Dr. Meng's collection began appearing in volume 4 of the 2002 catalog. Together with generous access by many other collectors, Meng's cooperation has resulted in creation of scanned images of all but about 1300 stamps by Scott as of 2024 catalogue series. About 120 are specialized stamps from the US Specialized Catalogue.
Penny Black – World's first postage stamp; Penny Blue – Trial printings from a penny black plate; Two pence blue – Issued for second rate step, at the same time as Penny Black; VR official – First official stamp; Prince Consort Essay; Penny Red – Improved follow-ons to the Penny Black; Archer Roulette – Experimental separation of stamps
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 ...
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This led to many of the stamps having varieties with different papers, perforations and the addition of a phosphor coating. Thus at this more specialized level the series is rather complex. [3] The 1/2 cent stamp was the last issued of that denomination for use as postage, although a postage due stamp of that value was issued in 1959.