30c black on grey 'Motorcycle' postal stationery special delivery envelope (UPSS #SD1, H&G ADB1) with 'ENTREGA INMEDIATA' overprint in red. A fine unused example.
30c black on grey 'Motorcycle' postal stationery special delivery envelope (UPSS #SD1, H&G ADB1) with 'ENTREGA INMEDIATA' overprint in red. A fine unused example.