This is arguably one of the most decorative maps of the county of Middlesex. It is lined with 92 coats of arms of all the Free Companies of London and is headed by the Cities own arms. It was published in Emanuel Bowen’s ‘Large English Atlas’. Hodson lays out the various states of the map, the first two being proof issues. This is state 6 of 8 which was issued from the c.1767. It is derived from John Warburton’s separately published rare two-sheet map of 1749. The engraver Richard Seale dedicates the map to Thomas Holles Pelham, Duke of Newcastle and the Lord Lieutenant of Middlesex and Westminster at the time. Hodson I pp. 175-6 & II no. 221 & p. 133 state f; Worms & Baynton-Williams (2011).