servants carry him from Soho House to the Soho Mint, and he sat and watched the machinery,which was kept exceptionally busy in 1808 by the striking of almost 90,000,000 pieces for the East India Company. He wrote, "Of all the mechanical subjects I ever entered upon, there is none in which I ever engaged with so much ardour as that of bringing to perfection the art of coining." By early 1809 he was seriously ill. He had long suffered from kidney stones, which also lodged in the bladder, causing him great pain. He died at Soho House on 17 August 1809. He was buried in the graveyard of St. Mary's Church, Handsworth, in Birmingham – the church was later extended over the site of his grave. Inside the church, on the north wall of the sanctuary, is a large marble monument to him, commissioned by his son, sculpted by the sculptor John Flaxman. It includes a marble bust of Boulton, set in a circular opening above two putti, one holding an engraving of the Soho Manufactory. Boulton is recognised by several memorials and other commemorations in and around Birmingham. Soho House, his home from 1766 until his death, is now a museum, as is his first workshop, Sarehole Mill. The Soho archives are part of the Birmingham City Archives, at the Library of Birmingham. He is recognised by blue plaques at his Steelhouse Lane birthplace and at Soho House. A gilded bronze statue of Boulton, Watt and Murdoch (1956) by William Bloye stands opposite Centenary Square in central Birmingham. Matthew Boulton College was named in his honour in 1957. The two-hundredth anniversary of his death, in 2009, resulted in a number of tributes. Birmingham City Council promoted "a year long festival celebrating the life, work and legacy of Matthew Boulton". On 29 May 2009 the Bank of England announced that Boulton and Watt would appear on a new £50 note. The design is the first to feature a dual portrait on a Bank of England note, and presents the two industrialists side by side with images of a steam engine and Boulton's Soho Manufactory. Quotes attributed to each of the men are inscribed on the note: "I sell here, sir, what all the world desires to have—POWER" (Boulton) and "I can think of nothing else but this machine" (Watt). The notes entered circulation on 2 November 2011. In March 2009,