Original verdigris finish (65)

Great Peter is England's only surviving medieval bourdon, or "great", bell . Diameter: 68 ½ inches (1,740 mm). Weight: 59 cwt, 3 qr, 14lb (3,048kg). The precise date of its founding is uncertain, but is known to be no later than 1400. The bell access hole in the crossing vault was constructed in 1345 and it would seem that the bell was cast to the maximum size that would pass through it - there is only ½ inch clearance. Gloucester was well known for its bell founding in the 14th century, particularly for the work of master bell founder John. At around 1640 Great Peter was equipped with a whole wheel so that it could be swung through 360 degrees, however the bell's weight required seven men to ring it safely. In 1979 it was re-hung in its present position for chiming only.

According to the Latin inscription: ME FECIT FIERI CONVENTUS NOMINE PETRI, the bell was made for the convent of St. Peter. Between each word is a shield bearing the arms of Gloucester Abbey and above it are three unidentified bell founder's marks.