1946. 33 pages. This is an ex-Library book. Paperback book with blue cover. Library stamp to front cover. FIAT Final Report No. 733. Vertical Retort Zinc And By-Products. Pages are mostly clean overall, with moderate tanning throughout. Staple binding is firm with noticeable rust. Text is unaffected. Paper covers have mild edge wear with creasing and scuffing. Visible sunning to spine. Rust marks to covers.