细节
A complex photographic prismatic optical bench apparatus,
the various components and accessories arranged in an oak carrying case, one major accessory with diamond-section bar and attachments, the carrying case with label inscribed Adam Hilger, London, England -- 26½in. (67.3cm.) wide
the various components and accessories arranged in an oak carrying case, one major accessory with diamond-section bar and attachments, the carrying case with label inscribed Adam Hilger, London, England -- 26½in. (67.3cm.) wide