Tupolev Tu-144 (USSR) ✈ Aérospatiale-BAC Concorde(France/UK)

Tupolev Tu-144 (USSR). First flight: 31 December 1968 (Wiki)

The Tupolev Tu-144 (NATO name: “Charger”) is a retired jet airliner, which was the world’s first commercial supersonic transport aircraft (SST). It is one of only two SSTs to enter commercial service, the other being the Anglo-French Concorde. The design, publicly unveiled in January 1962, was constructed in the Soviet Union under the direction of the Tupolev design bureau, headed by Alexei Tupolev. Throughout its 55- flight operational history, the Tu-144 flew at an average service altitude of 16- 17,000 meters and at a speed of around 2,000 km/h
— Wikipedia

Aérospatiale-BAC Concorde (France/UK). First flight: 2 March 1969 (Wiki)