-----

thank you for the additional images

information exhibited by them is confirmatory of a Chiorda origin

---

frame -

head lugs are Agrati "AM" pattern

upper head lug is item N. 000.8044

lower head lug is item N.000.8043

seat lug is AMERICA" pattern N. 086.8569

fork crown one widely seen on Chiroda built Bianchi cycles, do not have stock number
(Bianchi acquired Chiorda in 1966)

bottom bracket shell appears Agrati item N. 000.8507 (image indistinct, some guesswork involved)

dropouts Agrati N. 000.8002

fork ends Agrati N. 000.8010

both plate style stay bridges are Agrati pieces but do not have the stock numbers for them

the under the top tube routing of rear brake cable is something frequently encountered on Chiorda products

---

kitting -

OEM gear ensemble was Simplex Prestige

chainset may be OMG

pedals Union Frondenberg model K10491/U41

original stem/bar set likely 3TTT Tourist

original brake levers Balilla

non-original bits: front mech, rear mech, brake levers, stem, saddle

---

round black transfer on seat tube appears to be from a cycle shop, it may be cycle originally sold there or it may be it was only serviced there

there are other transfers which appear to be of post-manufacture origin, possible they may give helpful information

-----