Stereoscope

Stereoscope, a simple optical apparatus which, when two photographs of an object taken from slightly different standpoints (so as to secure the appearance it presents to either eye singly) are placed under its twin magnifying lenses, presents to the eyes of the looker a single picture of the object standing out in natural relief.

Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)

Steppes * Sterling, John
Stephen, George
Stephen, James
Stephen, Leslie
Stephen, St.
Stephens, James
Stephen's, St.
Stephenson, George
Stephenson, Robert
Stepniak
Steppes
Stereoscope
Sterling, John
Stern, Daniel
Sterne, Laurence
Sternhold, Thomas
Steropes
Stesichorus
Stettin
Steuben, Baron von
Stevenson, Robert
Stevenson, Robert Louis Balfour