Ex-library, having been owned by a Government department, the Post Office Research Station Library and G.P.O. West Engineer-in-Chief’s Reference Library, with their stamps and with label remnants to front paste down. Dark green cloth-covered boards, gilt titles to spine, 434 pages and including 128 illustrations. Condition: Spine defaced by removal of a library mark; boards a little rubbed and worn, front end papers messy with library stamps and remains of library label, title page creased and discoloured, soiling to exernal edges of text block. Pages clean, bright and unmarked.