Interior view of the Government Laboratories, by Halftones Limited A waistcoated and shirt sleeved male technician holds a block of chocolate, in a paper wrapping, on a laboratory bench of the Government Laboratories at Clement's Inn Passage, Strand, London. Not captioned, but a duplicate of MS/373/4/24. Stamped: 'Copyright. Halftones Limited. 17, Fleet Street, E.C.' c.1901[?]