This particular collection of medals was donated by Professor John Hull Grundy, a skilled artist and draughtsman with a medical background and specialism in entomology. His wife Mrs Anne Hull Grundy, was an art historian with an interest in French medallic art. Their knowledge and interests complemented each other and their collection, and subsequent donation of objects, benefited many museums around the country. Many of these medals span the periods of design known as Art Nouveau, with its complex rounded shapes and Art Deco, known for its more angular and simplistic forms. They commemorate a wide variety of subjects such as World War I , The Zoological Society, and the storyteller Hans Christian Anderson.This particular medal commemorates the building of Tower Bridge. It was decided to build a bridge over the River Thames at Tower Hill, London in 1884. Ten years later the bridge was opened on the 30th June by the Prince of Wales. The architect involved in building Tower bridge was Sir Horace Jones and the engineer John Wolfe Barry. In 1976 the original hydraulic lifting machinery of the bridge was preserved but replaced by a new electrically operated system.