Sadly we don't know much about these photos! We know it is a Northern School of Music opera and that it is in the Lesser Free Trade Hall likely sometime in the late 1950s or 1960s. If you recognise the performers, please do let us know. Any little info helps!
Part of the #NSM2020 project "A 20/20 Legacy: the centenary of the Northern School of Music" supported by the National Lottery Heritage Fund.