Scope and Contents (8) ; D.W.4526.- ; Trainees listen to the African Assistant Instructor in a Lecturette on the faming and roofing of a Buidling.  In the background can be seen on the blackboard notes on the subject which are copied by the Trainees in their exercise books. ; ISSUED BY THE WEST AFRICAN PHOTOGRAPHIC SERVICE, REGIONAL INFORMATION OFFICE, ACCRA, GOLD COAST, BRITISH WEST AFRICA.--Recto ; WEST AFRICAN PHOTOGRAPHIC SERVICE OF THE  REGIONAL INFORMATION OFFICE; P.O. Box 555 ; ACCRA GOLD COAST WEST...