By Gemma Almond Why the anonymous and everyday objects are important: using the Science Museum’s collections to re-write the history of vision aids By Tom Everett Writing sound with a human ear: reconstructing Bell and Blake’s 1874 ear phonautograph By Tessa Murdoch and Jonathan Betts A royal gift? Mrs Strangways Horner’s small silver clock, 1740 By Julie Ackroyd The provenance and context of the Giustiniani Medicine Chest By Barry Murnane, Darragh Murnane, Mark Sanders and Noel Snell ‘Great ease and simplicity of action’: Dr Nelson’s Inhaler and the origins of modern inhalation therapy By Tom Ritchie Ventriloquised voices: the Science Museum and the Hartree Differential Analyser By Alice Cliff and Jenny Rinkinen Visualising electricity demand: use and users of a 3D chart from the 1950s By Joanne Gooding Rather unspectacular: design choices in National Health Service glasses By Melissa Dickson Something in the Air: Dr Carter Moffat’s Ammoniaphone and the Victorian Science of Singing By Claire Kennard Understanding storm surges in the North Sea: Ishiguro’s electronic modelling machine