On April 21 1967, this former capital of French Equatorial Africa was the first African nation to issue a Gandhi stamp.  Although several foreigners were featured on their air-mail issues, this was a first for domestic postage rate in Congo.  This was the only issue from French Africa that commemorated Gandhi alone. The second Gandhi stamp was issued 25 years later, in 1992.  The design of this Gandhi issue is unique, in that it included images of both Gandhi and Martin Luther King, with his 1964 Nobel peace prize mentioned.