When describing the special garments of the High Priest, the Bible describes that along the hem of his robes could be found golden bells. 

"On its hem make pomegranates of blue, purple, and crimson yarns, all around the hem, with bells of gold between them all around: a golden bell and a pomegranate, a golden bell and a pomegranate, all around the hem of the robe." (Exodus 28: 33 - 34) 

In 2011, archaeologists excavating in the City of David - the place where Jerusalem began - announce the discovery of a 2,000 year-old, small golden bell, believed to be one of those that adorned the robe of the High Priest, who served in the Temple.