Scarce quarter plate stereoscopic daguerreotype featuring a stereo male portrait housed in a rare and early "Mascher’s Improved Stereoscope" case. Each portrait is housed under its own gilt oval mat and retains rich detail and subtle hand-tinting. The daguerreotype itself shows moderate surface wear and visible scratches throughout but remains well contrasted and clearly focused, with the distinctive visual doubling intended for stereoscopic effect.

Housed in an embossed leather Mascher case with intact hinges and functional clasp. The pad on the lower half is boldly stamped "Mascher's Improved Stereoscope / Philadelphia / Patented April 15, 1856," with original lens cutouts present but the viewing lenses themselves now missing. Despite the loss, the case remains structurally sound and quite scarce on the market in any form.

The Mascher stereoscopic daguerreotype is a fascinating intersection of photography and optical novelty, developed at the height of the daguerreian era when demand for immersive and interactive viewing experiences gave rise to a short-lived wave of stereo innovations. Examples such as this are uncommon survivors.