This sale features an original vintage early 1900s Keystone View Company Zeta Unit stereoview card (7x3½") titled - The Last Snowfall (3). Produced primarily in the early 20th century (c. 1900-1930s), these cards were used with a stereoscope to create a 3D effect. This specific card was designed as an "eye training" tool, which is why it features numerous small, numbered points (1-10) across the garden scene to help viewers practice focus and depth perception. Please see photos.
