The collections, its diversity, and size are considered a wealth of heritage and a historical reference for Arabia.
Group includes
212,000 stamps (oldest since 1867)
5,000 documents (oldest since 1865)
120,000 manuscripts and books
مغلف
طابع خمسينية الرياض 1986م
Mi.: 83، 861 طابعان ، 862 طابعان