This is the full image of evangelical conversation. This piece of artwork shows symbols for the four evangelists which are Lion, man, bull, eagle each with legs and two sets of wings but no feet. They are look to be naked under their wings because their legs are not covered.

Source: http://gallica.bnf.fr/ark:/12148/btv1b10507215v/f278.item
Image Alt Text: None provided
Reuse License: no license found for key "?"