Here are all labels in high resolution:
Six labels show people and landscapes of Laos:
lao Woman:

River Mekong - Photo by Agence Économique du Gouvernement de l'Indochine (This photo is actually shows River Nam Khan, not the river Mekong):

Wat Xieng Thong, Luang Prabang - Photo by R. Tétart, (1919):

Pha That Luang, Vientiane - Unknown source:

Plain of Jars, Xieng Khuang Plateau (known in French as Plateau du Tran-Ninh):

Falls in the Mekong:
