Base of the Column of Antoninus Pius; Vatican; James Anderson; 1813-1877; British; ca. 1857; Salted paper print from a wet collodion negative on thin; smooth; cream wove paper; Sheet: 11 1/8 x 13 5/8 inches (28.3 x 34.6 cm) and Mount: 17 3/8 x 23 inches (44.1 x 58.4 cm); architectural subject; base; horses (animals); relief sculpture; soldiers; Italy; Vatican City