It's one of those rare buildings in NYC that has never been touched other than upkeep and repairs.
Post here for comparison.....
The speech Lincoln gave in this building started the ball rolling for ending slavery and getting him into the WH.
That modern photo you posted though is a back view. The "Black gate" you see in the 1888 photo surrounding the park is still there.
Like I said before: The only difference seems to be they added a water tower.
beautiful building