Originally Posted by
juvela
...Agree it appears to be from the immediate pre-Piaggio time. The proprietary Bianchi pattern headset it wears is something not employed on top models. Suspect the Valentino/NGS shift lever set is an original fitting. This, together with finish make me think midliner.
Possible that absence of Portacatena could be due to non-Campagnolo ends.
Originally Posted by
padg85
...I've checked the serial number again and it looks like either an "S" or a "5"...
Originally Posted by
juvela
...Possible it may be something like Columbus Aelle.
The 2nd character would be an "5", as opposed to an "S". This would confirm 1975-1976. It would also make it too early for Columbus Aelle. If the seat post diameter is indicative of a mid-range model, it is most likely a Falck tubeset.