Spare Parts Catalogues 1st Edition of 1922 2nd Edition, 1922-1925 2nd Edition, 1922-1925 2nd Edition with Appendix 1 (english version), 1922-1926 2nd Edition, 1922-1926 Appendix 1 of 2nd Edition, 1925-1926 4th Edition of 1927 All models, 1919-1928