Description: The stamp features a detailed illustration of the Eastern Festoon (Thais cerisyi, now classified as Allancastria cerisyi) set against a beige background. The butterfly is depicted with its characteristic pale yellow wings, heavily marked with black "festoon" scallops and distinct red spots near the margins. Text elements are simple and legible: the country name "N R BULGARIA" (Narodna Republika Bŭlgariya) runs vertically along the left, the scientific name "Thais cerisyi" appears at the bottom left, and the face value "st 2" (2 Stotinki) is positioned in the bottom right corner. The design emphasizes the insect's natural symmetry and complex markings without heavy background scenery.
Circa: 1962
Condition: Used
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