This 1923 first edition of Harmonium represents a cornerstone of the American Modernist canon, capturing the precise moment Wallace Stevens redefined the possibilities of poetic language. Featuring the striking second-issue decorated boards, this specific copy serves as a premier transatlantic traveler; originally owned by an Ensign Clark of Maryland, it likely entered the renowned Roosevelt-Clarke library during Sir Humphrey Clarke’s service at the British Embassy in Washington during WWII. In Very Good condition, this volume offers a rare tangible link between the ‘supreme fiction’ of Stevens and the elite diplomatic circles that shaped the 20th-century Western world, making it a museum-quality acquisition for any serious collector of Modernist literature.