A PAIR OF RUBY RED GLASS BOWLSIncised Qianlong four-character marks and probably of the period Each vessel resting on a short rounded foot with concave base incised with a four-character mark within a double square, the thick walls flaring gently outwards at the rim, the translucent glass of rich ruby-red tone, fitted box. 8cm (3 1/8in) wide (3). pare with a pair of ruby glass c, Qianlong four-character marks in the Bristol Museum and Art Gallery, Inv. N4636 and N4637.