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A cannon emplacement in the Castel Sant'Angelo, Rome, looking towards Saint Peter's
Details
                                        
                                            Hubert Robert (Paris 1733-1808) 
A cannon emplacement in the Castel Sant'Angelo, Rome, looking towards Saint Peter's
black chalk, pen and brown ink, brown and grey wash
4½ x 6¾ in. (112 x 172 mm.)
                                        
                                    A cannon emplacement in the Castel Sant'Angelo, Rome, looking towards Saint Peter's
black chalk, pen and brown ink, brown and grey wash
4½ x 6¾ in. (112 x 172 mm.)