Carbon 14 dating assumes that the carbon dioxide
Maintaining an abundant stock of images on spec may have been a expedient to entice prospective buyers. , the brown (raw umber and/or black) dead-color filled two functions: the broader areas of dark brown paint represented the masses of shadows with the light buff color of the ground serving as the lights.
Such thinking greatly influenced academic art, in particular history painting, from the Renaissance through to the nineteenth century.
Decorum also determined that a pictorial or sculptural subject was suitable for an architectural setting, such as Vulcan's forge over a fireplace, or that kinds of buildings are fitting in urban or rural contexts or appropriate for persons of certain status.
Liturgical functions influenced by decorum dictate the placement of paintings, mosaics and sculpture in religious buildings.
Some of the dead-coloring can be made out here and there through abraded paint layers.
It has been remarked that more than one passage in appears unfinished and that this allows us to have a glimpse at Vermeer's underpainting although it is not out of the question that early restoration may be partially responsible for the loss of the uppermost paint layers.