Thank you to all and especially T-Mar, very knowledgable :-)
on the rear derailleur I have the inscription "Patent 78" It is "super Record"
on the front derailleur, it looks to be 4 holes "Record" only for 1978
https://velobase.com/ViewComponent.a...=113&AbsPos=19
For the Crank arms, I have "STRADA 7"
I guess "7" stand for the date code, but I don't know how to decode.
For frame serial number I have 5-0-56
56 looks for the length of the seat tube
is 0 for 1980 ? and 5 for May ?
The other number, 1-1821, any meaning ?
