We got a lot of good guesses on this one. One person wrote to ask if it was "that block of Christian Street before Delaware Avenue where there are homes on the north side and [there's] a parking lot under 95 on the south side." Guesses in the comments were the 2000 block of Sansom Street and South Street by the South Street Bridge.
But now you know: The photograph was taken on Lombard Street between Front and Second. The hint we gave was that it was near moisture and movies, by which we meant the Delaware and the Ritz 5 movie theater. The photo was taken to document housing that didn't require fire escapes under a new law in 1915.
Have any suggestions for the next Cornerspotter challenge? Let us know! Send an email to firstname.lastname@example.org.