1. Add MS 53052 P Reference (shelfmark): Add MS 53052 P Title: 'Keep your door locked', by A. Matthison. Scope & Content: Farce in one act. Licence sent 25 August 1866 for performance at the Adelphi. The attribution of the play to A. Matthison is taken from Nicoll, the name of the dramatist not being noted on the script. Collection Area: Western Manuscripts Languages: English Date Range: Aug 1866 Extent: 39 folios.