The euro sign ⟨⟩ is the currency sign used for the euro, the official currency of the eurozone and unilaterally adopted by Kosovo and Montenegro. The design was presented to the public by the European Commission on 12 December 1996. It consists of a stylized letter E (or epsilon), crossed by two lines instead of one. Depending on convention in each nation, the symbol can either precede the value (for instance, €10), or follow the value (for instance, 10 €), often with an intervening space. There were originally 30 proposed designs for a symbol for Europe's new common currency; the Commission short-listed these to ten candidates. These ten were put to a public survey. The President of the European Commission at the time (Jacques Santer) and the European Commissioner with responsibility for the euro (Yves-Thibault de Silguy) then chose the winning design. The other designs that were considered are not available for the public to view, nor is any information regarding the designers available for public query. The Commission considers the process of designing to have been internal and keeps these records secret. The eventual winner was a design created by a team of four experts whose identities have not been revealed. It is believed by some that the Belgian graphic designer Alain Billiet was the designer of the selected euro sign. The symbol € is based on the Greek letter epsilon (Є), with the first letter in the word "Europe" and with 2 parallel lines signifying stability. The official story of the design history of the euro sign is disputed by Arthur Eisenmenger, a former chief graphic designer for the European Economic Community, who says he had the idea 25 years before the Commission's decision. The Commission specified a euro logo with exact proportions and colours (PMS Yellow foreground, PMS Reflex Blue background), for use in public-relations material related to the euro introduction. While the Commission intended the logo to be a prescribed glyph shape, type designers made it clear that they intended instead to adapt the design to be consistent with the typefaces to which it was to be added.