The Undersecretary of Ministry of Culture and Information for Cultural Affairs, Dr. Nasser Al-Hejailan, opened here yesterday the Exhibition of Stamps and Coins, organized by Saudi Philatelic Society. Dr. Al-Hujailan toured the four-day exhibition in which 16 Saudis are taking part. Dr. Al-Hujailan said in a press statement that the hobby of collecting stamps and coins is one of the most popular hobbies around the world.