81. LKH1 Reference (shelfmark): LKH1 Title: Recording catalogue - Bound volume Scope & Content: BBC Library of sound effects, catalogue supplements 1941, 1942, 1943 Collection Area: Sound Archive Languages: English Date Range: 1941-1943 Extent: 1 volume
82. LKD8 Reference (shelfmark): LKD8 Title: Iceland photographs Scope & Content: Photographs and postcards from Koch's trip to Iceland Collection Area: Sound Archive Languages: Not applicable Date Range: 1950s Extent: 30 photographs
83. LKE3 Reference (shelfmark): LKE3 Title: Diary notebook Scope & Content: Volume containing diary and notes of Koch's recordings on Isles of Scilly, Corsica, Paris and Iceland, also draft articles and scripts for programmes Collection Area: Sound Archive Languages: English Date Range: 1951-1956 Extent: 1 volume
84. LKD4 Reference (shelfmark): LKD4 Title: Animal identification photographs Scope & Content: Photographs of animals, possibly taken from books, with identification of each species, also some photographs of Koch and sound van at work. Undated document(s) Collection Area: Sound Archive Languages: Not applicable Date Range: Mid 20th century Extent: 37 photographs
85. LKD5 Reference (shelfmark): LKD5 Title: Picture Post photographs Scope & Content: Copies of photographs taken for picture post magazine which were not then used, appearing to show an organised expedition Collection Area: Sound Archive Languages: Not applicable Date Range: 1946 Extent: 11 photographs
86. LKD10 Reference (shelfmark): LKD10 Title: Possible use photographs Scope & Content: Photographs from an envelope entitled 'Koch photos etc. for possible use' - mostly of Koch at work recording. Undated document(s) Collection Area: Sound Archive Languages: Not applicable Date Range: Mid 20th century Extent: 7 photographs
87. LKA6.5 Reference (shelfmark): LKA6.5 Title: How men mimic bird sounds Scope & Content: Draft Collection Area: Sound Archive Languages: English Date Range: 1963 Extent: 9 folios
88. LKA5.4 Reference (shelfmark): LKA5.4 Title: Musicians I have met Scope & Content: Drafts and correspondence Collection Area: Sound Archive Languages: English Date Range: 1959 Extent: Approximately 100 folios
89. LKA6.1 Reference (shelfmark): LKA6.1 Title: A world of sound Scope & Content: Script and draft Collection Area: Sound Archive Languages: English Date Range: 1960 Extent: 8 folios
90. LKA6.7 Reference (shelfmark): LKA6.7 Title: Bird Song nos. 1-5 Scope & Content: Annotated scripts Collection Area: Sound Archive Languages: English Date Range: 1963 Extent: 37 folios