Because governments issue stamps of different denominations in unequal numbers and routinely discontinue some lines and introduce others, and because of their illustrations and association with the social and political realities of the time of their issue, they are often prized for their beauty and historical significance by stamp collectors whose study of their history and of mailing systems is called philately. Because collectors often buy stamps from an issuing agency with no intention to use them for postage, the revenues from such purchases and payments of postage can make them a source of net profit to that agency. On 1 May 1840, the Penny Black, the first adhesive postage stamp, was issued in the United Kingdom. Within three years postage stamps were introduced in Switzerland and Brazil, a little later in the United States, and by 1860, they were in 90 countries around the world. The first postage stamps did not need to show the issuing country, so no country name was included on them. Thus the UK remains the only country in the world to omit its name on postage stamps; the monarch’s image signifies the UK as the country of origin.
The net, activity booklets in dollar stores, family restaurants, or even sometimes at public libraries are sources of coloring pages, simple black and white drawings most commonly of cute cartoon characters. I can recall vividly my father introducing me to coloring in sheets as a hobby, and now I am doing the same with my child. Never mind how the world changes, our children nowadays love to color in just as much as we did when we were young. Kids love to show off what they can do by using their paints on the coloring sheets you give them. Find the best coloring art supplies: crayons, markers, pencils, sharpeners and more! You can save money, lots of ways, when you buy quality art supplies. For example, there's no need to throw away dull, flat, crayons. This can be wasteful and expensive. Sharpen them with a crayon sharpener, electric or manual, for continual use. Your crayons can look good as new! Another example, of saving money, is to buy washable markers. There's no need to worry about marker stains on furniture, floors, doors, walls or even clothes! Using washable coloring supplies, takes the stress out of coloring, at least for adults! Crayola is an established, trusted, name in the coloring business, worldwide. They make numerous and practical coloring supplies. Coloring pages are also very popularly showing holiday ideas, pictures, and characters (such as Santa Claus or the Easter Bunny), as well as biblical images, animals, educational themes, storybook themes, scenes in nature, and long retired cartoons. Even rudimentary objects have been changed over into coloring page format, like food, buildings and planes.