The collections, its diversity, and size are considered a wealth of heritage and a historical reference for Arabia.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
1956م ديسمبر
مغلف
"IBBI" الظهران
13.12.1956 = 10.05.1376 هـ