| http://www.w3.org/ns/prov#value | - This data is available and freely usable (Open license), in RDF or JSON. Sources and referencesLink to the main cataloguehttp://catalogue.bnf.fr/ark:/12148/cb12308681cSourcesDocuments by this author : Tracts and other publications on metallic and paper currency / by Lord Overstone, 1972 [reprod. de l'??d. de 1857]Ouvrages de reference : WW in economics, 1986 : Overstone, Samuel Jones Lloyd, 1796-1
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