Postage stamp design Postage stamp design Postage stamp design is the activity of graphic design as applied to postage stamps. Many thousands of designs have been created since a profile bust of Queen Victoria was adopted for the Penny Black in 1840; some designs have been considered very successful, others less so. A stamp design includes several elements required for it to accomplish its purpose satisfactorily. Most important is the denomination indicating its monetary value, while international agreements require a country name on almost all types of stamps. A graphic design is very nearly universal; in addition to making counterfeits harder to produce
Postage stamp problem Postage stamp problem The postage stamp problem is a mathematical riddle that asks what is the smallest postage value which cannot be placed on an envelope, if the latter can hold only a limited number of stamps, and these may only have certain specified face values. For example, suppose the envelope can hold only three stamps, and the available stamp values are 1 cent, 2 cents, 5 cents, and 20 cents. Then the solution is 13 cents; since any smaller value can be obtained with at most three stamps (e.g. 4 = 2 + 2, 8 = 5 + 2