A man 'o' war before Vesuvius in the Bay of Naples; and A man 'o' war before Vesuvius at night

Neapolitan School, 19th Century A man 'o' war before Vesuvius in the Bay of Naples; and A man 'o' war before Vesuvius at night each inscribed 'Eruzione del Vesuvio de Agosto 1833' and 'Veduta della Radade Napoli 1833' (lower edges) gouache on paper 6½ x 9½ in. (16.5 x 24.1 cm.) to image edge a pair (2)