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A coffer in architecture, is a sunken panel in the shape of a square, rectangle, or octagon in a ceiling, soffit or vault. A series of these sunken panels were used as decoration for a ceiling or a vault. The stone coffers of the ancient Greeks and Romans are the earliest surviving examples.A, from Palmyra; B, Basilica of Constantine.

Roman Ceiling Panels

A coffer in architecture, is a sunken panel in the shape of a square, rectangle, or octagon in a ceiling,…

"Amid the barren deserts of Arabia, a few fertile spots of soil arise out of the sandy waste, like islands out of the wide ocean. One of these places, termed <em>oases</em> by the inhabitants of those countries, became the seat of a rich, flourishing, and magnificent city, the immense ruins of which, at the present day, strike every traveller with astonishment. Palmyra, as this city was called in the Latin, and Tadmor, in the Syriac language, are both derrived from the multitude of palm-trees which grew upon this fertile region." &mdash; Goodrich, 1844

Palmyra

"Amid the barren deserts of Arabia, a few fertile spots of soil arise out of the sandy waste, like islands…

An ancient city located in the heart of the Syrian Desert.

Ruins of Palmyra

An ancient city located in the heart of the Syrian Desert.

"Temple in Palmyra." &mdash; Goodrich, 1844

Temple in Palmyra

"Temple in Palmyra." — Goodrich, 1844