An original Ferrari Gestione Sportiva full-scale factory engineering drawing for the engine flywheel (Volano Motore) developed for the F113A Formula One engine, dating from 5 November 1984.

Executed at a 1:1 scale, the blueprint measures approximately 84 × 70 cm and is printed on original Ferrari watermarked technical paper. The title block identifies the component as "Volano motore", for Tipo F113AL000, drawing number 126512, with the material specified as GH 60-38-10 (spheroidal graphite ferritic cast iron) and manufacturing requirements including Brinell hardness and Bonderizing surface treatment.

The blueprint originates directly from the estate of Renzo Medici, who joined Ferrari in 1947 and spent almost four decades with the company, ultimately serving as Head of Parts Production in Reparto Corse. Retained within his personal archive following his retirement, it represents an authentic working document from Ferrari's Formula One engineering department and an important survival from the marque's turbocharged Grand Prix era.