. . . "1" . "Photograph \"Christie's , Francesco Ubertini called Bachiacca. P. of a lady said to be of Frescobaldi\", positive - exemplar"@en . . . . . "Fotografia \"Christie's , Francesco Ubertini called Bachiacca. P. of a lady said to be of Frescobaldi\", positivo - esemplare"@it . . . .