The coin behind window sixteen is the 1 Stotinka coin from Bulgaria.
The currency in Bulgaria is the Lev, made up of one-hundred Stotinka. In archaic Bulgarian, the word ‘Lev’ meant ‘lion’.
The reverse features the denomination above the lettering ‘СТОТИНКА’ which translates as ‘1 Stotinka’. The twelve stars around the edge represent Europe.
The obverse of the 1999 1 Stotinka features the Madara Horseman facing right, killing a lion with a spear. This image is from the early medieval Madara Rider rock carving in the village of Madara in East Bulgaria, which dates back to the First Bulgarian Empire in AD 705-801. The archaeological site was included in the UNESCO World Heritage list in 1979, and declared a “National Symbol of Bulgaria” in 2009.