Improve Technology (Vietnam, South 1975)

Stamp Improve Technology it reflects the thematic directions:

A book is a medium for recording information in the form of writing or images. Books are typically composed of many pages, bound together and protected by a cover. Modern bound books were preceded by many other written mediums, such as the codex and the scroll. The book publishing process is the series of steps involved in their creation and dissemination.

A factory, manufacturing plant or a production plant is an industrial facility, often a complex consisting of several buildings filled with machinery, where workers manufacture items or operate machines which process each item into another. They are a critical part of modern economic production, with the majority of the world's goods being created or processed within factories.

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. 

A torch is a stick with combustible material at one end which can be used as a light source or to set something on fire. Torches have been used throughout history, and are still used in processions, symbolic and religious events, and in juggling entertainment. In some countries, notably the United Kingdom and Australia, "torch" in modern usage is also the term for a battery-operated portable light.

A wreath (/riːθ/) is an assortment of flowers, leaves, fruits, twigs, or various materials that is constructed to form a ring shape.