The bell usually represents the church bell, which is shown in a realistic, shaded form and may have a clapper of a different colour. A Glossary of Terms used in British Heraldry, J.H. Parker, Oxford, 1894, Entry:Bell In the middle ages Church bells were believed to have the power to disperse evil spirits and to summon guardian angels and we can assume a similar meaning for their depiction in a coat of arms. The Symbolisms of Heraldry, W. Cecil Wade, George Redway, London, 1898 P147