Question: What type of steel was used in mid–20th century developments and was a Raphael S. Soriano specialty?
Sentence (from "Mid-century modern"): The term, employed as a style descriptor as early as the mid-1950s, was reaffirmed in 1983 by Cara Greenberg in the title of her book, "Mid-Century Modern: Furniture of the 1950s" (Random House), celebrating the style that is now recognized by scholars and museums worldwide as a significant design movement.
Relevant evidence: No