I was sent this scan by Jack in Bologna, thanks to him for this. I know very little about what magazine it comes from or when it dates from. Normally I would not have included it, except that there is so little information anywhere about Guizzardi. I have spuriously guessed its date at around 1960.
The line 'manubri per cicli-moto e piegatura tubi' might translate as 'handlebars for cycles/motorcycles and tube bending'.
If you know anything about the date or origins of this advert please let me know!