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The Metropolitan Museum of Art: The Architect & The Industrial Arts, 11th Exhibition of Contemporary American Design, February 12 to March 24 [1929]

This poster was designed in 1928 [Futurahad first come onto the market merely a year before, in late 1927. Unsurprisingly, Dwiggins uses capitals only. He found the new European sans serifs like Futura, Kabel or Gill Sans "fine in the capitals and bum in the lower-case". [Metro, his first typeface design.

The image is taken from the recommendable @WADwiggins Twitter stream about "America's Master Graphic Designer, Artist, and Wit", edited by Bruce Kennett as a teaser for an upcoming illustrated biography by the Letterform Archive.