Part contents of improvised (home-made) portfolio. Posters from ICRF Director's Laboratory Quinquennial Review displays and other occasions. Comprises: 'Studying Normal and Malignant Colorectal Epithelium with Monoclonal Antibodies'. Mounted panel text and photographic prints of cell samples 'A Somatic Cell Hybrid Panel for Regional Mapping on Human Chromosome 18'. Mounted A4…