A detailed lithograph by Gustave Doré from London: A Pilgrimage, depicting the labourers tasked with maintaining the Victorian sewer system.

This lithograph, titled Rats d'égout, originates from the collaborative project London: A Pilgrimage, published in 1872. Gustave Doré, alongside journalist Blanchard Jerrold, documented the social conditions of the Victorian capital. The image depicts a group of sewer workers, colloquially known as 'sewer rats', who were responsible for the maintenance of the city's subterranean infrastructure.

Doré employs a stark, monochromatic palette to convey the grim reality of these labourers. The composition focuses on the physical presence of the men, who are shown with tools in hand, standing near an open manhole. One figure is partially submerged, his head visible at the street level, which creates a sense of spatial depth and transition between the surface world and the dark, confined spaces below. The artist uses fine, hatched lines to define the textures of their worn clothing and the rough surfaces of the urban environment.

Unlike his more fantastical illustrations for literary classics, this work belongs to a body of reportage that sought to expose the hidden aspects of industrialised society. The figures are rendered with a focus on their stoic, weary expressions, reflecting the arduous nature of their trade. The lack of romanticisation in the depiction provides a direct observation of the working class in nineteenth-century London. By capturing these individuals in their specific professional context, Doré provides a visual record of the labour that supported the expansion of the city. The print serves as a historical document of the period, capturing the intersection of human toil and urban development.