Whitechapel Bell Foundry in the context of "St. Mary's Church, Walthamstow"

The Liberty Bell, previously called the State House Bell or Old State House Bell, is an iconic symbol of American independence located in Philadelphia. Originally placed in the steeple of Pennsylvania State House, now known as Independence Hall, the Liberty Bell today is located across the street from Independence Hall in the Liberty Bell Center in Independence National Historical Park.

The bell was commissioned in 1752 by the Pennsylvania Provincial Assembly from the London-based firm Lester and Pack, later renamed the Whitechapel Bell Foundry, and was cast with the lettering "Proclaim LIBERTY Throughout all the Land unto all the Inhabitants Thereof". The bell first cracked when rung after its arrival in Philadelphia, and was twice recast by local workmen John Pass and John Stow, whose surnames appear on the bell. In its early years, the bell was used to summon lawmakers to legislative sessions and to alert citizens to public meetings and proclamations. It is likely that the Liberty Bell was among the bells in Philadelphia to ring on July 8, 1776, when the Declaration of Independence was first read to the public, although no contemporary account of the ringing exists.

Bellfounding is the casting and tuning of large bronze bells in a foundry for use such as in churches, clock towers and public buildings, either to signify the time or an event, or as a musical carillon or chime. Large bells are made by casting bell metal in moulds designed for their intended musical pitches. Further fine tuning is then performed using a lathe to shave metal from the bell to produce a distinctive bell tone by sounding the correct musical harmonics.

Bellfounding in East Asia dates from about 2000 BCE and in Europe from the 4th or 5th century CE. In Britain, archaeological excavations have revealed traces of furnaces, showing that bells were often cast on site in pits in a church or its grounds. Centralised foundries became common when railways allowed easy transportation of bells, leading to the dominance of founders such as the Whitechapel Bell Foundry and John Taylor & Co of Loughborough.