Keywords: American First World War Official Exchange Collection Q61473.jpg American First World War Official Exchange Collection<br/> Gas shells exploding American official photographer First World War http //media iwm org uk/iwm/mediaLib//325/media-325637/large jpg Q 61473 205085537 This image was created and released by the Imperial War Museum on the http //www iwm org uk/corporate/privacy-copyright/licence IWM Non Commercial Licence Photographs taken or artworks created by a member of the forces during their active service duties are covered by Crown Copyright provisions Faithful reproductions may be reused under that licence which is considered expired 50 years after their creation American First World War Official Exchange Collection photographs PD-USGov American First World War Official Exchange collection Images uploaded by Fæ |