Luigi Valadier (1726–1785)
Reduction of the Arch of Trajan in Ancona, ca. 1778
Green jasper, verde di Corsica, porphyry, lapis lazuli, and gilt bronze
12 3/8 × 11 1/8 × 6 in. (31.5 × 28.3 × 15.2 cm)
Museo Arqueológico Nacional, Madrid