710 Main Street, Cambridge, Massachusetts, USA. This building was home to the Davenport Car Manufactory, pioneering manufacturer of railroad cars, as noted in a plaque on the facade. According to another plaque, it was subsequently one end of the first two-way long distance telephone conversation, which extended across three hours on October 9, 1876. Thomas G. Watson was at this location, and spoke to Alexander Graham Bell at 60 Kilby Street, Boston, Massachusetts.
<a href="//commons.wikimedia.org/wiki/User:Daderot" title="User:Daderot">Daderot</a>
2008-05
<span class="int-own-work" lang="en">Own work</span>