The collections, its diversity, and size are considered a wealth of heritage and a historical reference for Arabia.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
عام 1324 هـ صك سند استلام من إدارة الخط الحجازي تحمل 13 ختم توقيع إطار خشبي ذهبي عام 1324 هـ / 1906ـ1907م