A WALNUT AND EBONISED CASED GRAPHOSCOPE

A WALNUT AND EBONISED CASED GRAPHOSCOPE, patented July 6th 1875, the large magnifying lens fixed on sliding metal supports with turned ivory finials, stereoscopic viewer with metal slide holder and fretwork easel, 13 1/2" x 11 1/2" x 6 1/2" closed