Check out the sign for Proctor's "Newark's Theatre Beautiful" and then "Refined Vaudeville-Low Prices." Pillsbury's Flour is nice and visible, twice, on this busy street. Some of the signs on the left seem to float, indicating they were pasted on the photo: Reilly's and Van Horn's can be detected if you squint. Red Star Stamps might have been an early version of S&H Green Stamps, but I'm not sure.
Newark has a number of old buildings still standing, in truncated form, along Market Street. Orange, the destination on the streetcar, is the name of a nearby suburb. Unlike New York City, Newark never consolidated with neighboring suburbs such as Orange, Belleville and Bloomfield. It's a fairly small "big city," with a population of about 277,000, according to the 2010 Census.
Miss Fannie Maurer of Gansford, Pa., received this postcard in May 1908:
I guess you are done housecleaning. I am just going to start tomorrow. How is your mother? You had better come along down when I come up. Carrie.