Issued in 1975, this beautiful three-stamp set from the Republic of Rwanda promotes Protection of Nature. The 20-centime stamp shows saline springs with Ankole cattle and native flora (Rhynchosia rwandaensis). The 30-centime value depicts wooded savannas featuring zebras, gazelles, and the Euphorbia candelabrum cactus. The 50-centime stamp illustrates bush fires, emphasizing the dangers of uncontrolled burning and highlighting the Thamnathus prunioides plant. Designed by J. Van Noten, the series combines delicate landscape art with environmental awareness, appealing to collectors of African conservation themes.