Seat post



<Gran Sport>
1st
2nd
3rd







1st
2nd
3rd
year (from Le cyclo)
January/1956
July/1957
December/1957
material
Steel chrome
Line
18
18 (early)

10 (later):mine
hand side support
long
short(normal)
head of nut
thin
thin
angle of pedeatal
sharp angled
low angled

never seen


<difference between 2nd and 3rd>
Left 2nd   Right;3rd


<2 type 2nd version>
I think that left is earlier than right.



<Record>
1st
for BROOKS NARROW rail
1960
late 1950s - early 1960s



<Super Leggeri>
from 1971
mesured model





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