The Annunciation and Throne of Mercy

Second half of the 15th century
Galleria Regionale, Palermo, Sicily

Instead of the usual architectural devices to separate Gabriel and Mary, the artist has placed between them the traditional vase of flowers and a large mandorla with the Throne of Mercy.

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More of the Annunciation
More of the Trinity

Photographed at the site by Richard Stracke, shared under Attribution-NonCommercial-ShareAlike license.