Orbit molecular model kit (large set) with booklet, made by Cochranes of Oxford Ltd., 1981. Orbit molecular model kit with booklet, 1981. Experimental Chemistry 1981
Unit molecular model kit (basic set) made by Cochranes of Oxford Ltd., 1981 Unit molecular model kit (basic set), 1981. Experimental Chemistry 1981
Minit molecular model kit (student pocket set) for organic and inorganic chemistry, with booklet, made by Cochranes of Oxford Ltd., 1981 Minit molecular model kit, 1981. Experimental Chemistry 1981
