Used Vintage AMBROSIO ENER-N.M. Rear Disc Wheel • 700C • Tubular • Francesca Moser rode this model wheel to The Hour Record in the 1984.  But not this particular one.

Could be ridden perhaps but best for display. A museum piece.

From AI:  

Ambrosio Ener-n.m. is a legendary vintage fiberglass lenticular disc wheel produced by the Italian cycling brand Ambrosio. It is a replica version of the heavy aerodynamic wheels used by Francesco Moser during his iconic 1984 Hour Record attempts.

Shipping and insurance is $100 in the 48 States.  OFFERS.