Illustrated guide to the National Museum in Naples : sanctioned by the Ministry of education (1897)
Museo nazionale di Napoli, Italy. Ministero dell'educazione nazionale, De Petra, Giulio · Naples : Richter & Co. · leaf 42
Fig 38. Giant from the Pergamene group (Phot. Brogi). Fig. 39. Wounded Gaul from the Doges' Palace of Venice (Phot. Alinari). Fig. 40. Amazon from the Pergamene group (Phot. Brogi).
Museo nazionale di Napoli · Art -- Italy Naples
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.