Nuove osservazioni critiche di Giuseppe Colbacchini, intorno al disegno rappresentante la donna amata da Raffaello che possono servire come riassunto di quanto nei tre antecedenti opuscoli venne dal medesimo affermato
An 1874 Venetian pamphlet by Giuseppe Colbacchini, published by Gaetano Longo in Venice, that continues his scholarly argument about a drawing said to show Raphael's beloved, aimed at art historians and connoisseurs. Its single picture is a small black-ink vignette of a winged cupid riding a sea creature amid waves, a decorative tailpiece a designer could borrow for putti, marine motifs, or classical border ornament.
