Saudi Commission for Tourism and Antiquities (SCTA) signed here yesterday four contracts for the projects of the expansion and development of two museums in Najran and Jouf, and the establishment of three headquarters of the branches of the Commission in Jazan, Hail, and Qassim regions at a cost of SR 142,147,000. The signing ceremony was attended by Prince Sultan bin Salman bin Abdulaziz, the SCTA President.