1922
78th Street, west side, north from Eighty-eight Avenue, showing at the corner "The Abbey". In 1922 it was known as Neir's Social Hall, 1922."
Neir's Tavern, which still serves drinks to the local neighborhood crowd, was originally established in 1829 as the Old Blue Pump House. Over the last nearly 200 years the building itself has been altered, with extensions and additions (the area over the entrance has been added on to make a full second floor since this 1922 photo was taken).
The business of the building has always been a bar and/or restaurant (other iterations were called the Old Abbey and the Union Course Tavern), so it has been called by some the "oldest bar in NYC," older even than McSorley's. Others would argue that since Woodhaven (or Woodville as it was called in 1829) was not a part of NYC until 1898, that knocks it out of consideration.
It was named Neir's by proprietor Louis Neir in 1898 and has a number of (at least local) claims to fame, including as a singing venue for Mae West and as a shooting location for the film Good Fellas. The interior of the bar retains many original features including pressed-tin walls and ceiling, and a large mahogany bar.