707 and 709 East 5th Street, North side of 5th Street between Avenue C and D. These appeared to be new-law tenements built after the 1901 tenement law change.
This particular corner was a huge drug dealing haven, the "La Luna Social Club" sign on the ground floor was probably a big drug dealing point when the building was occupied. Photos from early 1978
Keystone, and 6 pc pediment