Un-dated mid 1950s technical book covering 4 stroke, two stroke, diesel, rocket and gas turbine/jet engines in land sea and aeronautical use. Clear line drawings, exploded diagrams and cutaways of not only engines but related components and applications from lawn mower to ballistic missile! 380 pages. Hardback in good condition, some light foxing throughout. Dust jacket a bit scruffy and grubby. Tear to spine but otherwise intact.