The gridiron is the symbol of martyrdom of St Lawrence. The mosaic on the southern lunette of the Mausoleum of Galla Placidia in Ravenna dates from the early fifth century.
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by Henk Bekker
The gridiron is the symbol of martyrdom of St Lawrence. The mosaic on the southern lunette of the Mausoleum of Galla Placidia in Ravenna dates from the early fifth century.