Hansard's Parliamentary Debates New Series, Volume I, covering 21 April to 26 June 1820. Contains debates from both Houses of Parliament, King's speeches, messages, parliamentary papers, petitions, and indices of members who spoke. Published by T. C. Hansard in 1820. While the volume's timeframe postdates the 1765 Revestment, it serves as a reference for understanding 19th-century parliamentary procedure, record-keeping practices, and the institutional context within which Revestment-era records were preserved and later published.