| A. de Bonis [Rome, Cloister of San Pietro in Vincoli] 1872 Book illustration 11.8 x 8 Private collection of Giovanni Fanelli LL/55579 Illustration by Émile Thérond based on photograph by Adriano De Bonis.
Francis Wey, 1872, Rome, Description et souvenirs, (Paris: Hachette), p. 330
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