John Johnson Collection Exhibition 2001. ‘A Nation of Shopkeepers. Trade Ephemera from 1654 to the 1860 in the John Johnson Collection. (...) This exhibition of the ephemera of trade in the British Isles from 1654 to the 1860s draws primarily on the John Johnson Collection of Printed Ephemera in the Bodleian Library. Trade cards and bill headings, in spite their small format, contain a wealth of information both in their textual and iconographic content’.