The arms are those of Monson, for the Barons Monson of Burton, Lincolnshire.
John George, 4th Baron Monson (1785-1809) married Sarah, eldest daughter of John, second Earl of Mexborough in 1807. It appears that considerable silver was ordered from Paul Storr, around the time of this marriage until the 4th Baron's untimely death in 1809. His son, John (1809-1841) succeeded as 5th Baron at eight months of age.
Property from the Collection of the Right Honble. Lord Monson of Burton Hall, which sold at Sotheby's, London, 19 April 1951, included several lots of Paul Storr silver, all dating to 1808-10. The silver lots included a monumental centerpiece of two tiers supported by three female figures above a base of three seated musicians; a set of four vegetable dishes and two pairs of entree dishes, all with coronet knops. Gilt silver by Storr included a pair of tazzas with pierced acorn rim and a matching tea tray, which is illustrated in N. M. Penzer, Paul Storr, 1774-1844, Silversmith & Goldsmith, 1954, pl. XXV and in Timothy Schroder, The Gilbert Collection of Gold and Silver, 1988, pp. 364-66. Another pair of coolers of the same design, also by Paul Storr, sold Christie's, London, 10 July 1996, lot 155