This image was acquired from
flickr. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
balloons photography landscape world war worldwar black and white blackandwhite blackandwhite monochrome outdoor black and white ID number Photographer Hurley James Francis Frank Place Belgium Western Front Belgium Ypres Area Ypres An unidentified officer entering the basket of an observation balloon prior to ascending near Ypres.