Boss

An Illustrated Dictionary of Words Used In Art and Archealogy. · 1883 · p. 7

The centre of a shield; also an architectural ornament for ceilings, put where the ribs of a vault meet, or in other situations. IMG:6949005855195395773_fig_092.jpg: Fig. 92. Greek Bo age. IMG:6949005855195395773_fig_093.jpg: Fig. 93. Bo age.