"Aerial Navigation, Liebig trade card, c 1910."
© Science Museum / Science & Society Picture Library
"'La Navigazione Aerea'. The card shows three early aeroplanes: Henri Farman's (1874-1958) biplane, in which he made his first flight in 1908; the '14 bis' aeroplane in which Alberto Santos Dumont (1873-1932) achieved the first sustained flight in Europe in 1906; and Jacob Ellehammer's biplane in which he made the first European flight, also in 1906. The Liebig company produced sets of trade cards to promote their meat extract, a cheap and nutritious product invented in 1847 by chemist, Justus von Liebig. The meat extract was produced from 1865 at the Fray Bentos - Liebig processing plant set up in Uruguay. 1,863 sets of cards were produced continuously from 1872 until 1975 by which time the company had joined with Brooke Bond to become Brooke-Bond Oxo and was owned by Unilever."