The detailed studies in the upper part of the sheet show three views of an armed trawler from different angles and two of the same approaching clinker-built motorized, inshore vessel with sailing rig stowed, probably a fishing boat used for taking crabs, lobsters, shrimps, shellfish, mackerel, etc. The airship in the top left is one of the seven ships of the 'C Star'-class of coastal airships. They were numbered 'C*4' to 'C*10' inclusive, were completed between May and July 1918, deflated in January and April 1919 and deleted in October 1919. The panoramic sea view at the bottom is a study of the effect of the smoke put up by five indeterminate ships on the far horizon.