拍品专文
A very early serial numbered example of the Beck Mirror Stereoscope.
细节
Mirror stereoscope no. 109
Smith, Beck & Beck, London; hand-held, mahogany-body, a pair of focusing brass bound lenses and inset label NO. 109. PATENT. MIRROR STEREOSCOPE. SMITH BECK & BECK, LONDON
Smith, Beck & Beck, London; hand-held, mahogany-body, a pair of focusing brass bound lenses and inset label NO. 109. PATENT. MIRROR STEREOSCOPE. SMITH BECK & BECK, LONDON