This is a lot of 17 Republique Du Burundi Stamps.
These are primarily from the 1960s. 4 celebrate the 15th anniversary of the Universal Declaration of Human Rights, 6 commemorate the year of international cooperation (1965), 5 celebrate the first anniversary of Burundi's admission to the United Nations (two of these have visible plate numbers), and 2 celebrate technological cooperation in Africa.
They come in good Mint Never Hinged (MNH) Fine (F) condition, in a double-sided display sheet.