Vintage Merckx De Rosa Fiat Tour de France 1977.
The current owner, who bought the bike directly from Eddy Merckx in the late '70ies, recieved confirmation from Mr Eddy Merckx about the 
authenticity of the frame. Contact with Mr De Rosa learned that this bike
can be dated in 1977. All sizes and dimensions were measured by Mr. Ludwig Wynants who certified another Merckx bike in de Koers! museum.They proved to match perfectly with the certified bicycles of Eddy Merckx. 
Many thanks to Mr. Ludwig Wynants.
Eddy Merckx and his race frame dimensions at Colnago