Blackstone Hall Building, Providence, RI
November 8, 1884
We were able to determine from the Providence Board of Trade Journal (vol. 2, p.94, 1891) that Blackstone Hall was on the corners of Washington and Snow Streets in downtown Providence. And that it could accommodate 500-600 people. We could not identify a specific address.
We do have a copy of a glass plate negative of Blackstone Hall which locates it at Washington and Acorn Sts. In the photo we believe the hall is the building with the cupola as it was described as "architecturally excellent" in that same Board of Trade mention.