Really cool! The Saudi flag, thanks to Ihsan (ihsan-br.blogspot.com) in Dhahran (الظهران), Eastern Region. If you follow me, you know I love flags, so this made me very happy. The stamps are really cool too (you can see them further below).
I'm surprised that they don't have the name of the country in Latin characters anywhere! One of them is of Mecca, the other I don't know... I'll ask Ihsan.