These pictures were categorised as Printing Shops in Washington, Bureau of Engraving and Printing, c1920-1950, although taking a clue from the clothing worn, I would guess that they could be pinned down to c1930.
What puzzled me about the photographs is that a great deal of attention seems to be being paid to a fairly run-of-the-mill-looking printing press.
If you have any idea what is so special about this machine, let us know.
