The elimination of labor in the manufacture of soft mud brick
Subtitle: the Penfield System.
Publisher: The American Equipment Co.
Place of publication: Chicago
Language: eng
Number of pages: 15
Subjects: Brickmaking machinery -- Pictorial works.
Genres: Pictorial works.
Other titles: Penfield System; Soft mud brick industry is keeping pace with progress, the American Equipment Co.
Notes: LC copy stamped: U.E.S. Library, Sep. 13, 1923.

With: Facilities for the handling and setting of brick, the Penfield System. Chicago : The American Equipment Co., [192-?]. Bound together subsequent to publication.