On 14 October, 2003 the Magyar Nemzeti Bank issued collector coins made of silver of a face value of HUF 5,000 on the occasion of the centenary of János Neumann’s birth.
On the front side there are the constituents of the binary system used for computer programmes – number one and zero – in a perspectival image. On the reverse side, in the background of the scientist’s portrait, there is part of the computer prepared in 1951 on the basis of János Neumann’s concepts.
The coin was designed by Áron Bohus, goldsmith.
The coin was made of silver with a fineness of 925 ‰, weighing 31.46 grams, with a diameter of 38.61 mm, with milled edge.
6,000 can be minted of this collector coin, out of which 3,000 will be minted with a special – so called „proof” - technology.
The public can purchase these coins at face value, at Hungarian Mint Ltd (Könyves Kálmán körút 38.) as well as in the shop of the Visitors’ Center of the Magyar Nemzeti Bank (Budapest, Szabadság tér 8/9).