This enlarged real photograph postcard dates from 1919-1923. The photographer is looking north on Broadway from Third Avenue North. On the west (left) side of Broadway we can see Jones Candies and the R&G Bootery. The next building contains a hotel (name unknown) and a shoe store. The building has "1902" at the top and "?UNBAN" below it. The large vacant lot is where the Fargo Theater will be built in 1925. Across Fourth Street we can see that the Powers Hotel now has five stories (the upper two were added in 1919, thus helping date the picture).
Proceeding north on the east (right) side of Broadway we can see the Underwood Typewriter store, an unknown store, the Dixon Hotel, and the Strand Theater (which burned in 1923 and again dating the photograph). Across Broadway we see the Fargo Mercantile Building and the Ford Building (with the flag atop).

Fargo, North Dakota
Broadway North of Third Street