Speculum Romanae Magnificentiae: The Tiber. Artist: Nicolas Beatrizet (French, Lun?ville 1515-ca. 1566 Rome (?)). Dimensions: mount: 13 3/16 x 21 5/8 in. (33.5 x 55 cm) sheet: 21 x 26 15/16 in. (53.4 x 68.5 cm). Publisher: Antonio Lafreri (French, Or