R Abraham Portaleone's Shilte ha-Giborim

To be clear - this is not the famous Shilte ha-Gibborim by R Joshua Boaz. This is a book (only part of it, actually) devoted to the realia of the Temple and related topics, written by an Italian doctor in the 17th century. The book was published during his lifetime. But in recent years it has attracted the attention of Jewish Temple enthusiasts, who have devoted considerable time and effort to publishing a new edition.