Vietnamese flag in red, the text "Vietnam"

naive folk art illustration on a postage stamp, bold black outlines, stippled dotted shading technique, cream off-white paper background, perforated serrated stamp edges, slightly aged paper texture, hand-drawn feel, limited 2-3 color palette, small decorative elements, square format, warm mustard yellow and black palette, bold graphic shapes, geometric decorative borders. Subject: vietnamese flag in red, the text "Vietnam". No text, no words, no letters, no numbers.