A Salver and an Openwork Base. Dated: 1755/1760. Dimensions: sheet: 35.6 ? 25.7 cm (14 ? 10 1/8 in.) mount: 45.6 ? 33.6 cm (17 15/16 ? 13 1/4 in.). Medium: pen and brown ink with brown wash over black chalk and graphite on laid paper, laid down on an