Vintage 1993 A Wordsworth Colour Guide To Helicopters Mini Pocket Reference Book - Ex Shop Stock. Released by Wordsworth Editions Ltd in 1993 as part of their series of Wordsworth Colour Guide International Concise Mini Reference Books. This fantastic mini Wordsworth Colour Guide features Helicopters and is a 192 page concise reference book which contains extensive technical specifications each complemented with a full page colour photograph. Shop Stock Room Find. Discovered in the store room of a closed down shop with a whole load of other Wadsworth Colour Guide books. All Orders received before 4.00pm Monday to Fridays are shipped the same day.