A marker commemorating the landing of John Montgomery and claiming of California for the United States at the Bank of Italy building at 552 Montgomery Street in San Francisco, now a First Bank branch.  This building was the headquarters of the Bank of Italy from 1908-1921, which later became Bank of America.
<a href="//commons.wikimedia.org/wiki/User:BrokenSphere" title="User:BrokenSphere">BrokenSphere</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>