 Murals in the former council chamber depict the inventions that drove the Industrial Revolution, and the Great Hall is adorned with a large fresco of the signing of Magna Carta by artist Henry Holiday, although the painting is dirty.Responsibility for the decoration of the interior was given to Heaton, Butler and Bayne, who incorporated floor tiles that were manufactured by Mintons and decorated with the local insignia and the Royal coat of arms of the United Kingdom.The stone Grand Staircase, which leads from the vestibule to the Great Hall, is decorated with stained glass; such glass windows decorate most of the Town Hall and are considered to be the finest example of the work of Heaton, Butler and Bayne.