-----
Thank you very much for sharing this arrival!
Are you able to read any marking on frame ends?
Have you checked the tubes for any hallmarks?
Owned an early 1970's example which was fabricated of Libellula.
View attachment 1239265
View attachment 1239266
View attachment 1239267
headset, chainset & seat binder collar appear to be Magistroni (Giostra) products. bottom bracket fittings markings may include "nicrom." original cog may have been from this firm as well.
pedals are a road model Sheffield, perhaps the Corsa 655.
both wheels appear to be replacements. original hubs would have likely been made by Fratelli Brivio, regardless of how marked.
a most excellent find!
---
BTW - in case you have not as yet visited it there is a wonderful resource here for vintage Bozzi products, not only the cycles but the fittings suppliers as well. It is nominally anent the Leggy marque but includes some Frejus as well:
webmaster is Mark.
-----