unused  Red Flag, 3c. yellow-green, good to large margins, a light horizontal crease at top, fine appearance, unused. Photo
unused Red Flag, 3c. yellow-green, good to large margins, a light horizontal crease at top, fine appearance, unused. Photo

Details
unused Red Flag, 3c. yellow-green, good to large margins, a light horizontal crease at top, fine appearance, unused. Photo
Yang SP6, US$4400; S.G. SR3, JPS CS3