Wren, hearing of his "early skill and genius" for architecture, took him on as his clerk at about the age of 18. A surviving early sketch-book contains sketches and notes, some dated 1680 and 1683, of buildings in Nottingham, Coventry, Warwick, Bath, Bristol, Oxford and Northampton. These somewhat amateur drawings, now in the Royal Institute of British Architects Drawings Collection, show that he was still learning the techniques of his new profession at the age of 22. His first official post was as Deputy Surveyor to Wren at Winchester Palace from 1683 until February 1685. Hawksmoor's signature appears on a brickmaker's contract for Winchester Palace in November 1684. Wren was paying him 2 shillings a day in 1685 as assistant in his office in Whitehall.