The collections, its diversity, and size are considered a wealth of heritage and a historical reference for Arabia.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
ديسمبر 1957م
مغلف مسجل
طابع جوي 1949م
م18.12.1957 = 25.05.1377 هـ