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Buongiorno Don Edoardo,
Came across another Teddy wearing this HS. Alas, still do not know its name. If nothing else, gives support to the thought that it is original equipment. As you doubtless learned from your extensive research Carnielli does not list the non-Tullio headset makers in its model crosstables.
The poster of this machine lists it as "Campione del Mondo 1966" as though that were its model name and year. Does not seem to understand that this transfer was applied to all/many Carnielli prodotti at one time...
Here is the link to the blog entry for this machine -
La Zuccheriera | BOTTECCHIA ?Campione Del Mondo 1966?
For comparison here is a 1959 Bottecchia fitted with the more commonly seen WAY-Assauto:
Headset evolution -
Found two very similar Carnielli road machines dated at 1949 and 1950-51 respectively. Both are fitted with a headset which has a three-dog knurled lognut, serrated lock washer and knurled cups. They may well be Giostra products ("Magistroni') but can make no claim to know their identity. There is not quite enough res in the pictures to read the writing on the adjustable cup.
1949 example -
paramanubrio: Bottecchia 1949
1950-51 example -
Bici Classiche : Bottecchia 1950/51
Hope this does not simply add to the mystery...
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