Ducati 500 parallel-desmo-twin head

From the 500 cc Sport Desmo only 1.950 were build.
From the 350 Sport Desmo only 1.200.
This 500 cc head is complete.
This kind of desmo (characteristics: Chain driven camschafts,
valve angle 60 degrees, shorter cam followers
and very small cam-diameter)
was in production from 1976-1979.

(Classification = Group 6A)