File talk:William Hogarth - Absurd perspectives.png

The medium for the Hogarth image on perspective is listed as "oil on canvas." This image is, however, most certainly an intaglio print on paper. It is most likely an engraving or an etching.

Here is it listed as an etching with engraving: http://www.artoftheprint.com/artistpages/sullivan_luke_satireonfalseperspective.htm