PDO Approval

Purchase order form from Petroleum Development Oman LLC, with vendor details, purchase order number, date, buyer info, and delivery instructions.
A detailed invoice for 4,800 units of penetrating oil in aerosol tins, with a total price of $3,120, issued by a warehouse in Oman on December 14, 2004.

MOD Approval

Official letter on Islamic State of Oman letterhead, discussing a lubricating fluid product, signed by Ahmed Bin Said Bin Rsheed Al Rawahy.