On 12 September 2011, Bulgarian National Bank issued a new coin : 5 leva Kose Bose 2011, hand colorized silver 500/1000.
Technical parameters:
Nominal value : 5 Leva
Metal : Silver 500/1000, partly colorized;
Weight: 23.3 grams;
Diameter: 38.61mm;
Edge – flat;
Quality - Proof;
Mintage – 6000 pieces.
On the obverse of the coin is the logo of the Bulgarian National Bank, with the year 1879 inscribed on the ribbon. Around the coin is the inscription "Bulgarian National Bank",the nominal value "5 Leva" and the year of issue „2011“.
On the reverse of the coin is a color composition modeled after the fairy tale "Kose Bose". Around the coin is inscribed "Bulgarian Fairy Tales" and "Kose Bose".
The coin designer is Vasil Popov.