be hanged in chains from a gibbet. A figurative roundel by sculptor James Woodford that decorates the central bronze entrance door to Norwich City Hall depicts the hanging. James Rush James Blomfield (or Bloomfield) Rush was hanged at the Castle for the double murder of Norwich Recorder, Isaac Jermy and his son at Stanfield Hall near Wymondham on 28 November 1848. The crime, trial and execution excited national as well as local interest. Rush was held in the Castle gaol from early December. His trial took place at the Norwich Assizes and a guilty verdict was pronounced on 4 April 1849. The convicted felon was marched to the scaffold at noon on 21 April 1849 and despatched by hangman William Calcraft in front of thousands of spectators. Conversion to museum and art gallery The castle was bought by the city of Norwich to be used as a museum. The conversion was undertaken by Edward Boardman. Soane's cell complex within the keep was swept away and flooring and balconies installed. Norman style arches were built to support the new glazed roof. Wilkins's central gaoler's house and walled prisoner exercise yards made way for gardens and the cell blocks were converted to viewing galleries. The museum was officially opened by the Duke and Duchess of York on 23rd October 1894. Architecture G. T. Clark, a 19th-century antiquary and engineer, described Norwich's great tower as "the most highly ornamented keep in England". It was originally faced with Caen stone over a flint core. The keep is some by and high, and is of the hall-keep type, entered at first floor level through an external structure called the Bigod Tower. The exterior is decorated with blank arcading. Castle Rising, also in Norfolk, is the only other comparable keep in this respect. Internally, the keep has been gutted so that nothing remains of its medieval layout. The uncertainty surrounding the keep's arrangement has led to scholarly debate. What is agreed on is that it had a complex domestic arrangement, with a kitchen, chapel, a two-storey high hall, and 16 latrines. The original Norman bridge over the inner ditch was replaced in around 1825. Refacing of the keep The outer shell of the keep was extensively repaired in 1835–1839 by the architect Anthony Salvin. Stonemason James Watson completely refaced the keep with Bath stone, faithfully reproducing the original ornamentation. The etcher and watercolourist Edward Thomas Daniell