Here is a nice and old airmail label from Upper Volta.
Upper Volta (French: Haute-Volta) was a colony of French West Africa established on March 1, 1919, from territories that had been part of the colonies of Upper Senegal and Niger and the Côte d'Ivoire. The colony was dissolved on September 5, 1932, with parts being administered by the Côte d'Ivoire, French Sudan and Niger.(wikipedia)
Year: 1931, Ungummed. Günter Mair's catalogue no: - UVL-A-2, perforated 11, sheets of 14(2x7)
se-tenant with 4 labels UVL-A-3, black/light yellow, 5*****