“Comets.” One of nine wall hangings, all on astronomical themes, that were among many produced by the Working Men’s Educational Union in the 1850s. They were printed lithographically on cotton, probably to avoid paper duty. The hangings would have been used in lectures, held at various locations, to illustrate the latest advances in knowledge.
From Stephen Ellcock’s FB page “The Celestial Archive: Pre-Space Age Images of the Heavens.”