EV exhaust for Minarelli mopeds. Standard no-frills model with LARGE flange. This is for V1, V2, C2 etc type engines. Not for your scooter.
You can still fit this to the stock style/Polini/Dos cylinders by opening up the stud holes on the flange.
These are unused but they are old inventory from Argentina. Expect minor dents, dings, or scrapes.