Postage Stamp Design - Denomination

Denomination

The fundamental purpose of a stamp is to indicate the prepayment of postage. Since different kinds and sizes of mail normally pay different amounts of postage, the stamps need to carry a value. In a very few cases, the denomination has been omitted; for instance, during the tumults of 1949 China, undenominated stamps were issued, so as to allow the price of a stamp to fluctuate on a daily basis depending on the value of the gold yuan.

The usual form of the denomination is a number, optionally preceded or followed by a currency symbol. Many early stamps wrote the denomination out in words, but the Universal Postal Union later required that stamps on international mail use Arabic numerals, for the benefit of clerks in foreign countries. A number of recent stamps have substituted a textual description of the rate being charged, such as "1st" for first-class letters, or "presorted ZIP+4" to indicate a particular type of bulk mail. Another form of nonnumerical denomination is that used for rate change stamps, in which the timing and politics of the rate-setting process is such that the stamps must be printed before the rate is known. In such cases, the preprinted stamps simply state "A", "B", etc., with the equivalent rate being announced just before they go on sale.

Semi-postal stamps are usually denominated with two values, with a "+" between, the first indicating the actual rate, and the second the additional amount to be given to a charity. In a very few cases a country has had a dual currency, and the stamps may depict a value in both currencies.