Laos: 2001 "Guardian" 600k-2600k complete set of 4. Progressive proof of 7 processes on gum paper size 12x29 cm. divided into 2 portion upper portion of 4 red rectangulars printed "SPECIMEN" twice in gilt and lower portion of 4 stamps printed the design and printed "SPECIMEN" twice in gilt. The issued postage stamps provided. Unmounted mint. Very fine. VF.(7+4)