This 30 stotinki stamp from the Kingdom of Bulgaria, issued in 1938, depicts the famous Madara Rider (Мадарски конник), an early medieval rock relief carved in the 8th century during the First Bulgarian Empire. The relief shows a horseman triumphantly riding with a spear, symbolizing Bulgarian strength and heritage. Recognized as one of Bulgaria’s most important cultural monuments, the Madara Rider is today a UNESCO World Heritage Site. This issue was part of a commemorative series highlighting national monuments and historic sites. A striking design in deep violet, the stamp celebrates Bulgaria’s ancient history and identity.