This ornate building, located at 87 Mariner Street in the heart of Allentown was built in 1896 for the Pan-American Exposition.
Built as a residential hotel, it originally had a roof-top dining room.
I failed to stump our observant readers once again.
klo3384 said that, “I believe that is the Buckingham apt building at Mariner and Allen.”
Walldog concurred with klo3384’s ans werand also mentioned the roof drain that is still present in the detail.