Unit molecular model kit (basic set) made by Cochranes of Oxford Ltd., 1981 Unit molecular model kit (basic set), 1981. 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. 1981
Orbit molecular model kit (large set) with booklet, made by Cochranes of Oxford Ltd., 1981. Orbit molecular model kit with booklet, 1981. 1981
The Orbit Orrery with instruction leaflet by Cochranes of Oxford Ltd., supplied by Philip Harris Education, Leafield, Oxford The Orbit Orrery with instruction leaflet by Cochranes of Oxford Ltd. 1996