The image for sale depicts a figure labeled "Sixte IV," which refers to Pope Sixtus IV, who was the head of the Catholic Church from 1471 to 1484. He is portrayed seated in an ornate chair that signifies his high ecclesiastical office.
Pope Sixtus IV is dressed in papal regalia, including a white cassock and a red mozzetta, which is a short elbow-length cape typically worn by higher clergy in the Roman Catholic Church. On his head, he wears a red zucchetto, a small skullcap that is also part of the traditional papal attire. His footwear, partially visible, appears to be red papal shoes, which were traditionally worn by the Pope.
The chair he is seated on is richly decorated with tassels and intricate patterns, indicative of the opulence associated with the papal throne. His posture is upright and his expression is contemplative, suggesting a moment of reflection or prayer.
For this print, the title conveys the religious significance and the meditative pose of the Pope.
Egg whites can be applied as a varnish over pigments to enhance their brightness and to protect the colors. This application could make the colors appear more vivid and also add a slight glossy sheen to the surface of the image.
Egg yolk, on the other hand, was commonly used as a binding agent in paint. It forms the basis of tempera paint, a medium that was widely used before the advent of oil painting. Egg yolk helps to create a durable and long-lasting color that adheres well to various surfaces.
In the context of the print from 1847, it's less likely that egg whites or yolks were used directly on the print, as by that time, commercial printing processes would have been more advanced and less reliant on such manual methods. However, if this print is a representation of an earlier style or is meant to mimic the appearance of hand-painted manuscripts, the original artists might have employed techniques or materials that gave a similar effect to those achieved with egg-based binders and varnishes.
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