Audio/Visual materials as follows:
- Tape created in 1969 of a recording of Richard Temple singing the Mikado's song in 1902.
- Educational A/V filmstrip of a performance of The Mikado, ca.1950s-1980s.
- Educational A/V filmstrip of a performance of H.M.S. Pinafore, ca.1950s-1980s.
- Audio cassette, labelled '#517B Pierpont Morgan Library. Sir Arthur Sullivan by Reginald Allen', ca.1960s-1980s.
- Microfilm in cannister. Box labelled 'From Mr Allen. M/S of Iolanthe, The Sorcerer, Pirates of Penzance', ca.1960s-1980s.
- Audio recording of a production of Utopia, Limited, undated.