Check out this amazing 1927 photo of 14th St.

Source: Dig DC
The 14th Street corridor would look very different forty years later, after the 1968 riots created the conditions for DC’s red-light district on these same blocks.
You’re looking north along 14th St. towards the Commerce Department. It’s probably a little later than 1927 since construction on the Commerce building only started that year.
I see no signs of construction around what looks like a finished building, but it’s obviously not the present Commerce Department Building. So I infer this picture was taken before 1927, when they must have torn down this building.
The building in question is presumably the War Industries building…which you can see on the Baist atlases.
I agree with the other commentators — the War Industries Building must have been a WW I “tempo.” Note particularly one of the Bulfinch Gates, relocated from the Capitol grounds to Constitution Avenue/”B” Street, NW, where they remain today.