Joint commemorative issue of Egypt and China, celebrating 50 years of diplomatic relations between the two countries. One stamp shows the small temple of Queen Nefertari at Abu Simbel, the other, the South Gate Pavillion in China.
One interesting detail, which may not be quite visible in this picture, is that Abu Simbel has been spelt Abu Simple!!
The Souvenir Sheet, which shows the Sphinx and Pyramids of Giza, the Great Wall of China and includes both stamps, was produced in relatively small quantities and is now rather expensive. The stamps are still quite reasonable in comparison.