In 1999 to celebrate Mother and Child, the Royal Mint on behalf of Bulgaria released a very Limited Issue Mother and Child 20 Twenty Leva Gold Proof Coin struck in solid .999 Gold weighing one twentieth of an ounce of pure Gold.
The reverse features a portrait of a Mother and Child by Lutz Sandmann while the obverse depicts the Bulgarian Coat of Arms.
These legal tender coins have been struck to proof quality using specially prepared dies and highly polished blanks.