Stamp from the inauguration of Democritus Nuclear Research Centre in Agia Paraskevi. Depicts ancient Greek philosopher Democritus and a model of an atom.

Depicts Abū Bakr Muhammad ibn Zakariyyā al-Rāzī (also known as Rhazes), a Persian polymath, physician, alchemist, and philosopher.

Stamp depicts the launch of an Atlas rocket carrying a Mercury single-man spacecraft, Newton, the fabled apple, and a satellite (possibly NASA's first Orbiting Astronomical Observatory launched in 1966).

Peruvian postage stamp commemorating the centenary of the birth of Daniel Alcides Carrión García (1857-1885), a Peruvian medical student after whom Carrion's disease is named. The stamp depicts Saint Martin de Porres…

Stamp issued by the "Deutsche Reich" government under Nazi rule depicting images associated with the profession of chemistry.

Stamp depicts scales weighing jars of jam, with text, "2 1/4 lbs of Jam is a little more than a kilogram."

Stamp depicts aspects of chemistry and related sciences.

Stamp depicts a generic formula for an amino acid where R stands for "radical." In organic chemistry, this nomenclature represents the possibility of any one of a series of aliphatic groups, like methyl, ethyl, propyl,…

Stamp was issued on the occasion of a Natural Rubber Conference held in Kuala Lumpur, Malaysia, in 1968. It depicts a space-filling model of isoprene and a representation of the traditional way of collecting natural…

Postage stamp from Comoros, an archipelago of volcanic islands situated off the south-east coast of Africa, featuring a depiction of Persian polymath Avicenna (circa 980 - 1037), also known as Ibn Sina, Abu Ali Sina,…

Postage stamp from Dubai, featuring a depiction of Persian polymath Avicenna (circa 980 - 1037), also known as Ibn Sina, Abu Ali Sina, and Pur Sina. Avicenna is regarded as one of the most significant physicians,…

Stamp depicts an alchemist, rocket, and radar system.

Depicts Isaac Newton.

Stamp issued by the Yemen Arab Republic depicting Persian polymath Avicenna (circa 980 - 1037), also known as Ibn Sina, Abu Ali Sina, and Pur Sina, as well as red roses and the new World Health Organization headquarters…

Depicts logo for Expo '67 inside a diagram of an atom (diagram may represent an orbiting spacecraft).

Depicts a scientist in a laboratory setting looking through a microscope.

A sheet of stamps depicting Chaim Weizmann (1874-1952). Weizmann was a biochemist and the first president of Isreal.

Stamp depicts chemical glassware, electron microscope, molecule, and microscopic view of cell.

Soviet stamp commemorating Avicenna (980-1037), also known as Ibn Sina, a philosopher and alchemist.

Friedrich August Kekule von Stradonitz (1829-1896) was a German organic and theoretical chemist, whose most famous work was determining the structure of benzene. This Stamp features Kekule framed by the chemical…

Philatelic First Day Cover commemorating the 100th anniversary of the death of Louis Jacques Thénard (1777-1857), French chemist and the founder of the Société de Secours des Amis des Sciences.

Soviet Union postage stamp commemorating Nikolay Nikolaevich Zinin (1812-1880), a Russian organic chemist who created a base of aniline, which he named benzidam.

Israeli postage stamp issued in 1969, commemorating the 25th anniversary of the Weizmann Institute of Science. The design features a stylized atom and flask, symbolizing science, with the institute's name in Hebrew and…

1964 German stamp commemorating the 100 year anniversary of the discovery of Benzene. The stamp depicts the Kekulé structure of benzene, which was first created by August Kekulé (1829-1896) in 1865.

Iranian stamp commemorating Avicenna (980-1037), also known as Ibn Sina, a philosopher and alchemist.