North, J.J. and Preston-Morley, P.J., Sylloge of Coins of the British Isles 33, The John G. Brooker Collection, Coins of Charles I, 1625-1649, London, 1984, lxix + 130 plates and accompanying text; North, J.J., English Hammered Coinage, vol. 2, 1272-1662, 3rd edn, London, 1991, 222pp, 11 plates; Woodhead, P., Sylloge of Coins of the British Isles 47, The Herbert Schneider Collection, vol. 1, English Gold Coins 1257-1603, London, 1996, xiii + 140pp, 83 plates and accompanying text [3]. All extremely fine copies of these standard references, with d.js (£40-50)