Categories Treaty Second Additional Protocol to the Constitution of the Universal Postal Union البروتوكول الإضافي الثاني لدستور الاتحاد البريدي العالمي Post author By admin Post date May 12, 1977 Unfortunately, the text of this treaty is unavailable. Ratified by Royal Decree 38/77. ← Cultural Agreement between the Governments of the Sultanate of Oman and the State of Kuwait → General Regulations of the Universal Postal Union