The stamps shown are from a 1962 Laos issue dedicated to the Malaria Eradication program by the World Health Organization (WHO). They have the following Scott catalog numbers:
- Top Stamp: 4k value (green/grey) - Scott #74. This stamp depicts a boy and the malaria eradication emblem.
- Middle Stamp: 9k value (blue/violet) - Scott #75. This stamp features a girl and the malaria eradication emblem.
- Bottom Stamp: 20k value (red/pink) - Scott #76. This stamp features the malaria eradication emblem, which includes a butterfly.
The full set for this issue typically includes these three stamps, and can also be found in imperforate versions or souvenir sheets.