Work in progress and forthcoming

  • Design and page layouts in progress for a catalogue of pocket electronic calculators
  • Edits under way for two articles about articles on Sarah Sophia Banks and her collection

Selected and recent publications: books

  • Monks, manuscripts, and sundials: the navicula in medieval England (Leiden: Brill, 2010)
  • (with Artemis Manolopoulou) Paper money of England and Wales (London: British Museum Online Research Catalogue, 2010)
  • (edited with Harcourt Fuller and John Perkins) Money in Africa (London: British Museum Research Publications, 2009)
  • (edited with Jonathan Williams) Money: a history (London: British Museum Press, 2007)

Selected and recent publications: articles and chapters

  • ‘How and why did the Rupee become the currency of Zanzibar and East Africa?’, in K. Pallaver (ed) Monetary Transitions (Palgrave: 2022).
  • ‘Currency and commodity, as symbol of sovereignty and as subject of legal dispute: Henri Greffulhe and the coinage of Zanzibar in the late 19th century’, in S. Serels and G. Campbell (eds), Currencies of the Indian Ocean World (Palgrave: 2019)
  • ‘What were portable medieval astronomical instruments actually used for, and how much were they carried around?’, J. Nall, L. Taub and F. Willmoth (eds) The Whipple Museum of the History of Science: objects and investigations (Cambridge University Press: 2019)
  • ‘What were portable astronomical instruments used for in late-medieval England, and how much were they actually carried around?’, in Mathematisches Forschungsinstitut Oberwolfach, Oberwolfach Reports, 58(2017)
  • ‘Sarah Sophia Banks, Adam Afzelius, and a coin from Sierra Leone’, in A. Craciun and S. Schaffer (eds) The Material Cultures of Enlightenment Arts and Sciences (Palgrave: 2016)
  • ‘Designing change: coins and the creation of new national identities’, in R. Craggs and C. Wintle (eds), Cultures of Decolonisation: transnational productions and practises, 1945-70 (Manchester University Press: 2016)
  • ‘Collecting America: Sarah Sophia Banks and the ‘Continental Dollar’ of 1776’, in Numismatic Chronicle (2014)
  • ‘Collecting African money in Georgian London: Sarah Sophia Banks and her collection of coins’, in Museum History Journal 6:1 (2013)
  • ‘A King, two lords and three quadrants’, in Early Science and Medicine 16(2011)
  • (with Sophia Davis) ‘Touching numbers’, in Anthropological Theory 10:1-2(2010)
  • ‘Oronce Fine’s sundials: the sources and influences of De Solaribus Horologiis’, in A. Marr (ed.), The worlds of Oronce Fine: mathematics, instruments, and the book in Renaissance France, St Andrews Studies in Art History (Stamford: Paul Watkins Publishing, 2009)
  • ‘John Whethamstede, Abbot of St Albans, on the discovery of the liberal arts and their tools. Or, why were astronomical instruments in late-medieval libraries?’, in Mediaevalia 29.1(2009)
  • ‘More than just exhibitions of coins: the 21st-century money museum and its audiences’, in Proceedings of the meeting of ICOMON in San José, Costa Rica, October 2005 (San José: Central Bank of Costa Rica, 2008)
  • ‘Designs on decimal coins: Christopher Ironside,’ in Designing Change: the art of coin design, ed. K. Clancy (Llantrisant: Royal Mint, 2008)
  • ‘Chaucer’s own astrolabe and the relationship between text, image and object’ in Studies in History and Philosophy of Science A 38:2(2007)
  • ‘Medieval sundials and manuscript sources’, in S. Kusukawa and I. Maclean (eds) Transmitting knowledge: words, images and instruments in Early Modern Europe (Oxford: Oxford University Press, 2006)
  • (with Matthew Spencer) ‘Copying and conflation in Geoffrey Chaucer’s Treatise on the Astrolabe: a stemmatic analysis using phylogenetic software’, in Studies in History and Philosophy of Science A (2006)
  • (with Richard Kelleher) ‘1343 and all that. Previously unnoticed documents relating to England’s new gold and silver coins,’ British Numismatic Journal 76 (2006)
  • (with Jennifer Downes, Katharine Harloe, Boris Jardine, Adam Mosley and Nick Jardine) ‘Instruments of Translation,’ in L. Taub and F. Willmoth (eds) Instruments and Interpretations: A Festschrift for the Whipple Museum of the History of Science (Cambridge: Cambridge University Press, 2006)
  • (with Boris Jardine) ‘Collections and Projections: Henry Sutton’s Paper Instruments,’ Journal of the History of Collections 17.1(2005)
  • ‘A Previously Unnoticed Fragment of Chaucer’s Treatise on the Astrolabe,’ Journal of the Early Book Society 6(2003)