In the theatre, an iron-railed, two tier galleried auditorium rises on three sides, supported on cast iron columns above a small, high, multi-tiered stage.
It survives largely in its original form, as for many years it was used as a Quaker meeting house.
William Isaac Palmer (1824–1893) purchased it on behalf of the Blue Ribbon Gospel Temperance Mission in 1879.
On Palmer's death, the hall passed to the Bedford Institute, a Quaker organisation dedicated to running adult schools and alleviating the effects of poverty.
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