1953. No Edition Remarks. 272 pages. Grey Dust jacket over red cloth with gilt lettering. Insignia for "Fifth Empire Mining and Metallurgical Congress" to front board. Black and white photographic plates throughout. Volume IVb. Light tanning to pages with light foxing to pastedowns and free endpapers. Pen inscription to front pastedown. Binding remains firm. Boards have minor corner bumping and edgewear with mild sunning and scuffing overall. Visible water staining to bottom corner adjacent to spine. Spine has light sunning with soft crushing to ends. Lettering remains bright and clear. Unclipped dust jacket with minor rubbing, chipping and tearing to edges. Moderate tanning and scuffing overall.