Ears of corn (Belgium 1957)

Stamp Ears of corn it reflects the thematic directions:

A crop is a plant that can be grown and harvested extensively for profit or subsistence. In other words, crop is a plant or plant product that is grown for a specific purpose such as food, fibre or fuel.

When plants of the same species are cultivated in rows or other systematic arrangements, it is called crop field or crop cultivation.

The European Conference of Postal and Telecommunications Administrations (CEPT) was established on June 26, 1959, as a coordinating body for European state telecommunications and postal organizations. The acronym comes from the French version of its name Conférence européenne des administrations des postes et des télécommunications.

The Europa postage stamp (also known as Europa - CEPT until 1992) is an annual joint issue of stamps with a common design or theme by postal administrations of member countries of the European Communities (1956-1959), the European Conference of Postal and Telecommunications Administrations (CEPT) from 1960 to 1992, and the PostEurop Association since 1993. Europe is the central theme. EUROPA stamps underlines cooperation in the posts domain, taking into account promotion of philately. They also build awareness of the common roots, culture and history of Europe and its common goals. As such, EUROPA stamp issues are among the most collected and most popular stamps in the world. Since the first issue in 1956, EUROPA stamps have been a tangible symbol of Europe’s desire for closer integration and cooperation.

In microeconomics, an industry is a branch of an economy that produces a closely related set of raw materials, goods, or services.For example, one might refer to the wood industry or to the insurance industry. 

Agriculture is the cultivation and breeding of animals, plants and fungi for food, fiber, biofuel, medicinal plants and other products used to sustain and enhance human life.[1] Agriculture was the key development in the rise of sedentary human civilization, whereby farming of domesticated species created food surpluses that nurtured the development of civilization. The study of agriculture is known as agricultural science. The history of agriculture dates back thousands of years, and its development has been driven and defined by greatly different climates, cultures, and technologies. Industrial agriculture based on large-scale monoculture farming has become the dominant agricultural methodology.

A bridge is a structure built to span physical obstacles without closing the way underneath such as a body of water, valley, or road, for the purpose of providing passage over the obstacle. There are many different designs that each serve a particular purpose and apply to different situations. Designs of bridges vary depending on the function of the bridge, the nature of the terrain where the bridge is constructed and anchored, the material used to make it, and the funds available to build it.