21. LKF9 Reference (shelfmark): LKF9 Title: Natur und Museum Scope & Content: April 1963, February 1964, October 1965 Collection Area: Sound Archive Languages: German Date Range: 1963-1965 Extent: 3 volumes
22. LKF10 Reference (shelfmark): LKF10 Title: Geschutzte Natur [Protected nature] Scope & Content: Two copies Collection Area: Sound Archive Languages: German Date Range: 1958 Extent: 2 volumes
23. LKF11 Reference (shelfmark): LKF11 Title: Unserem gast [Our Guest] Scope & Content: April, May 1959 Collection Area: Sound Archive Languages: German Date Range: 1959 Extent: 2 volumes
24. LKF12 Reference (shelfmark): LKF12 Title: Other German journals Scope & Content: Elebter Naturschutz, Deutsche Jager-Zeitung [German hunter-newspaper], Deutscher Bund fur Vogelschutz [German alliance for bird protection], Wild und hund [Game animals and hounds] Collection Area: Sound Archive Languages: German Date Range: 1958-1967 Extent: 4 volumes
25. LKG Reference (shelfmark): LKG Title: Books and Publications Scope & Content: Books and drafts worked on by Koch, including background material for soundbooks. Some undated documents Collection Area: Sound Archive Languages: English and German Date Range: 1935-1955 Extent: 9 files
26. LKG1 Reference (shelfmark): LKG1 Title: Gefiederte Meistersanger [Feathered Mastersingers] Scope & Content: Book by Koch and Dr Ostar Heinroth Collection Area: Sound Archive Languages: German Date Range: 1935 Extent: 120 pages
27. LKH Reference (shelfmark): LKH Title: Other material Scope & Content: Sound library catalogues, some artwork and financial papers. Some undated documents Collection Area: Sound Archive Languages: English and German Date Range: 1941-1963 Extent: 6 files
28. LKH4 Reference (shelfmark): LKH4 Title: Artwork volume Scope & Content: Unidentified volume containing colour artwork of bird species, with German notes on each species. Undated document(s) Collection Area: Sound Archive Languages: German Date Range: Mid 20th century Extent: 1 volume