Came across this at the Internet Archive; it’s a pile (40+) volumes of this very interesting journal (in Italian, of course)… the ‘Read online’ option seems to be the best:
Citanda: Bullettino della Commissione archeologica comunale di Roma
quidquid bene dictum est ab ullo, meum est
rogueclassicism 
There is also a run from 1872-1930 at
http://periodici.librari.beniculturali.it/PeriodicoScheda.aspx?id_testata=44&Start=0
It’s listed in my Alphabetical list of Open Access Journals in Ancient Studies
http://ancientworldonline.blogspot.com/2009/10/alphabetical-list-of-open-access.html
-Chuck-