J. B. Joyce & Co, clockmakers, were founded in Shropshire in England. The company claim to be the oldest clock manufacturer in the world, originally established in 1690, and have been part of the Smith of Derby Group since 1965. The claim is challenged by another English firm of clockmakers, Thwaites & Reed, who claim to have been in continuous manufacture since before 1740, with antecedents to 1610.