06 May (Netherlands ) within release Surprise stamps goes into circulation Se-tenant Surprise stamps - from booklet face value 160 Dutch cent
Se-tenant Surprise stamps - from booklet in catalogues | |
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Stamp Number: | Sn: NL 1025-1026 |
Yvert et Tellier: | Yt: NL 1691-1692 |
Stanley Gibbons: | Sg: NL 1944-1945 |
NVPH: | NVP: NL C410 |
Se-tenant is square format.
Combination from Booklet PB 54Also in the issue Surprise stamps:
Se-tenant Surprise stamps - from booklet it reflects the thematic directions:
The heart is a muscular organ found in most animals. This organ pumps blood through the blood vessels of the circulatory system.The pumped blood carries oxygen and nutrients to the body, while carrying metabolic waste such as carbon dioxide to the lungs.In humans, the heart is approximately the size of a closed fist and is located between the lungs, in the middle compartment of the chest, called the mediastinum.
Holography is a technique that enables a wavefront to be recorded and later reconstructed. It is best known as a method of generating three-dimensional images, and has a wide range of other uses, including data storage, microscopy, and interferometry. In principle, it is possible to make a hologram for any type of wave.