Course information and conference invitations Includes christmas cards and address cards, print samples, a photograph of Charles L Pickering, designs for award certificates, annual dinner information, invitations to have sherry with the printer to the university and conference invitations and course information such as Young Master Printers National Conference, "Lithographic Printing and Photo-Lithography", Annual Conference Home Counties Master Printers Alliance, "Course on the Teaching of Science to Students of Printing", "Printing Departments and their Aims", "Education for the Printing Industry", "Applied Science in Printing Technology". 1949-1968