There are a very few administrative records for the 18th century. For the 19th- and early 20th- centuries, these include a series of box office returns and correspondence, in particular a collection of letters between the theatre impresario Frederick Gye and major performers of the period such as the singers Giulia Grisi and Mario. Administrative records are most comprehensive for the period since 1946 and include minutes of Board and Sub-Committee Meetings, contractual details and correspondence. There is restricted access to some of this material.
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