The collections, its diversity, and size are considered a wealth of heritage and a historical reference for Arabia.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
"أبريل 1944م مغلف تاريخي نادر جداً الحرب العالمية الثانية البحرية الأمريكية ختم الرقيب العسكري"