The sketches, which are in pencil except for a few in watercolour or crayon, are mostly of architectural details and ornament, chiefly from churches. There are some sketches of buildings in Scotland (MSS.10658-10659), Northern France (MS.10661) and the English cathedral cities. There are also drawings of mediaeval musical instruments (MS.10662), armour (MS.10663) and objects from museums, especially metalwork and jewellery (MS.10665).