Three Ducati workshop manuals, includes original factory manual dated Dec. 1976 for 350-500 GTL models, Eng. and Italian lang. reprint of 750SS-900SS Desmo manual, 1975-1976 ed., (Eng., Italian, German and Spanish lang. reprint of the 1988 851 Superbike Kit workshop manual for racing models, Eng. and Italian lang. lot of 3.