on an arch-shaped board, an intricate floral motif runs around the border, with fragments of vegetal decoration with beading; the scene depicts St. Silvester rising a cross, surrounded by a crowd, with St. Helena and her son, St. Constantine, standing on the side; egg tempera, gesso, etched gold leaf on a wood panel. 68 x 48 cm (26 3/4 x 18 7/8 in.)