It appears to be a wooden model. The image appeared in this blog post from 2022. At the end of the blog post, there is the wooden model. https://thepastabbatical.substack.com/p/the-towers-of-bologna
It appears to be a wooden model. The image appeared in this blog post from 2022. At the end of the blog post, there is the wooden model. https://thepastabbatical.substack.com/p/the-towers-of-bologna