Swiss banks managed to mint a 3 millimeter-diameter coin engraved with the image of famous physicist Albert Einstein.
It is considered the smallest gold coin in the world. But it is impossible to get to know Einstein or the year the coin was issued there without the help of a magnifying glass.
The coin is sold inside a box in which the magnifying glass is placed.
The gold coin is worth a quarter of a Swiss franc, and was issued in a limited quantity.
It is not a coincidence that Einstein´s image was chosen. The famous physicist lived in Switzerland in the years 1895-1914, where he worked as an expert at the patent office in Bern. He presented to the scientific community his famous formula E = mc2.
