Funerary monument, depicting a dog, and possibly for the dog.
CIL 6.19190
Gravestone of Helena; Unknown; Roman Empire; 150 – 200; Marble; 61 x 31.5 cm (24 x 12 3/8 in.); 71.AA.271
HELENAE ALVMNAE
ANIMAE
INCOMPARABILI ET
BENEMERENTI
Helenae alumnae animae incomparabili et benemerenti
http://www.getty.edu/art/collection/objects/6727/unknown-maker-grave-stele-for-helena-roman-150-200/
See also: Online Companion to The Worlds of Roman Women http://www2.cnr.edu/home/araia/helena.html