A vanitas still life with a skull atop a book, an hourglass and two glass vases of flowers

Giovanni Francesco Barbieri, called Guercino (Cento 1591-1666 Bologna) A vanitas still life with a skull atop a book, an hourglass and two glass vases of flowers inscribed '·QVI QVA[...]' (center left, on the book) and 'Contra v[...]' (center right, on the cartellino) oil on canvas 12 1/8 x 15 1/8 in. (30.8 x 38.5 cm.)