Lewis Tomalin came up with the concept for the company after reading the work of Dr Gustav Jaeger, a professor of zoology and physiology, who pioneered the benefits of animal hair in clothing. Jaeger is pictured in his book Health Culture (London, 1907). Tomalin translated the doctor's work into EnglishPhotograph: Jaeger PRMilton Street in Moorgate became home to Jaeger's headquarters in 1887 and remained their base until the company moved to City Road in 1945Photograph: Jaeger PROctober 1932: Andrea Mijinska models an evening dress and coat designed by JaegerPhotograph: Sasha/Getty Images1934: Summer fashions from the House of JaegerPhotograph: Sasha/Getty ImagesMarch 1935: The interior of Jaeger's store in Regent StreetPhotograph: Sasha/Getty ImagesMarch 1935: Inside Jaeger's Regent Street storePhotograph: Sasha/Getty ImagesSeptember 1938: A winter sports ensemble by Jaeger, a white woolen three-quarter length coat with a hood worn over grey slacksPhotograph: Fox Photos/Getty Images'Jaeger for national health' – a 1940s poster campaignPhotograph: Jaeger PRSpring 1964: The Jaeger Girl advertising campaignPhotograph: Jaeger PRJanuary 1971: A boy models a knitted Italian double-breasted jacket with brass buttons and knitted Italian shortsPhotograph: Evening Standard/Getty ImagesMay 1980: Jaeger's grey flared knickerbockers, waistcoat and hatPhotograph: Evening Standard/Getty ImagesOctober 1985: Anne Bezamat models a print dress and hat Photograph: David Crump/Associated NewspapersJuly 2007: Jaeger's Regent Street shopPhotograph: Sarah Lee for the GuardianMay 2004: Belinda Earl was appointed chief executivePhotograph: John Rogers/Getty ImagesJaeger's spring/summer 2009 collection at London Fashion weekPhotograph: Dan Kitwood/Getty ImagesJaeger's autumn/winter 2009 collectionPhotograph: Ben Stansall/AFP/Getty ImagesJaeger's spring/summer 2011 showPhotograph: Chiaki Nozu/WireImageJaeger's spring/summer 2011 collectionPhotograph: Ian Gavan/Getty ImagesJaeger's spring/summer 2012 showPhotograph: Antonio de Moraes Barros Filho/WireImageMore from Jaeger's spring/summer 2012 showPhotograph: Antonio de Moraes Barros Filho/WireImage