Kuwait cover.
 Saudi Arabia 1959, 2 covers: 

• 1959 Ryad to Aden, franked with  definitives : 7⁄8 g, 3g. and 2g. 
• 1959 Ryad postmarks tying mixed franking of 4g. airmail Mi:31, Sc.C3, Sg. 359 and 4 definitives stamps