British embossed postage stamps British embossed postage stamps The adhesive embossed postage stamps of the United Kingdom, issued during the reign of Queen Victoria between 1847 and 1854 exhibit four features which are unique to this issue: Three values of the octagonal stamps were introduced to cover higher foreign and registered postal charges on the following dates: 1 Shilling (green) - 11 September 1847, 10d (brown) - 6 November 1848, 6d (mauve/lilac/purple) - 1 March 1854 The 1 shilling was the first British postage stamp to bear a value above 2d. The dies used for this type of printing have the embossed, (raised), portions
Postage stamp design error Postage stamp design error A postage stamp design error is a mistake made during the design phase of the postage stamp production process. Design errors most commonly occur as minor mistakes, such as a missing letter in the binomial name of an organism depicted on the stamp, but some have been major gaffes, such as a map appearing to lay claim to another country's territory, or the depiction of the wrong person on the stamp. A design error caught during the production process may disappear quietly, with copies of the error only getting into the public's hands via unscrupulous employees