This is an old label from French Indochina.
French Indochina was part of the French colonial empire in southeast Asia. In 1949 it was split into the independent states of Cambodia, Laos and Vietnam. The area was under Japanese occupation during WWII.
Year: 1930, Ungummed. Günter Mair's catalogue no: FIC-A-2b, rouletted (narrow steps), sheets of 40(5x8)