The problem of aerial navigation: Count Zeppelin's airship

Drawing. The problem of aerial navigation: Count Zeppelin's airship. / Will B Robinson, 1900. Monochrome wash, 40.5x28cm. Signed br. Stages of the first Zeppelin airship, Lake Constance: 1. The Air-Ship, held down by Men, conveyed to the Shed by a Tug. 2. The Air-Ship being taken from the Shed. 3. The Air-Ship starts towards the South-East. 4. The Vessel in its Shed. Original drawing for the Illustrated London News, 21 July 1900, p88