International Atlas of Clouds and Types of Skies published by the Office Nationale Metéorologique, Paris 1939. Abridged edition for the use of observers. In stiff boards that take the form of a wallet, size 31 by 25, containing 48 pages of bound text and an album of 41 plates, many in colour. These are unbound in a clear plastic wallet. Though a French publication the text and captions are in English Minor foxing to the first pages of text and occasional signs of handling to the margins of some of the illustrations, but over all in VG condition