Technical Library
- R2 Owners manual (German language) (published 1935) (11.8 MB)
- R2 Owners manual (German language) (published 1936) (23.5 MB)
- R2 Owners manual (German language) (published 1939) (11.3 MB)
- R2 parts manual (German language) (published 1932) (19.2 MB)
- R2 parts manual (German language) (published 1934) (22.9 MB)
- R2 parts manual (German language) (published 1935) (26.0 MB)
- R2 parts manual (German language) (published 1936) (22.4 MB)
- R2 parts manual (German language) (published 1942) (14.3 MB)