细节
A 19th-century lacquered-brass camera lucida,
signed on the clamp Dollond, London, with telescopic arm, steadying bars, prism and two lenses, in fitted mahogany case arranged with brass tie bar to fold open and flat for use as a sketching surface, the case 9½in. (24.1cm.) wide
See Illustration
signed on the clamp Dollond, London, with telescopic arm, steadying bars, prism and two lenses, in fitted mahogany case arranged with brass tie bar to fold open and flat for use as a sketching surface, the case 9½in. (24.1cm.) wide
See Illustration