A photograph with a caption that reads: 'Agricultural implements and machinery exhibition which is to be opened by Mr Denis Howell M.P. joint parliamentary under-secretary of state, Department of Education and Science, at the Science Museum Kensington. 438572 Photo shows - An early 19th Century dairy woman making butter in a plunge churn, three schoolchildren Left to right Debra Kverndal, Jean Bending and Susan Cambell all from Bromley High School'.