Anamorphosis before 1583. "The Ambassadors" (c. 1533) by Hans Holbein the Younger is well known for the prominent oblique anamorphic transformation in the painting. In this artwork, a distorted shape lies diagonally across the bottom of the frame. Viewing this from an acute angle transforms it into the plastic image of a human skull. The painting is regarded as a "vanitas" - a meditation on the transience of life - with the skull a symbolic "memento mori". The altered perspective required to see the image reflects the contemporary practice of painting skulls on the reverse of otherwise tranquil paintings. Four centuries
The Ambassadors (Holbein) clues to the figures' explorative associations are a selection of scientific instruments including two globes (one terrestrial and one celestial), a shepherd's dial, a quadrant, a torquetum, and a polyhedral sundial, as well as various textiles including the floor mosaic, based on a design from Westminster Abbey (the Cosmati pavement, before the High Altar), and the carpet on the upper shelf, which is most notably oriental, an example of Oriental carpets in Renaissance painting. The choice for the inclusion of the two figures can furthermore be seen as symbolic. The figure on the left is in secular attire while the