1- 20 postcards for the royal wedding correspondence of Princess Diana and Prince Charles in 1981. Price: 3 Riyals each. . 2- 50 postcards Czechoslovakia before the separation into the Czech Republic and Slovakia, old, used, sealed from the source. Price: 60 Riyals for the complete set. . 3- 400 old postcards, used and unused, excellent condition. Price: 250 Riyals for the complete set. .