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"This vintage educational chart was published in 1956 by the Better Vision Institute of 630 5th Avenue, New York, to \"promote better understanding of vision and better care of eyes\". &lt;P&gt;Measuring 60 inches wide by 40 inches high, this highly colorful chart is just chock-full of information! Metal hanging grommets placed across the top facilitated display back in the 1950's. This incredibly interesting, double-sided chart highlights the science and history of sight as well as its medical assessment and its effects on one's ability to function productively in society. &lt;P&gt;The front side of the chart is entitled, \"Vision: Master Key to Man's Progress\" and highlights the biology and history of sight with a side discussion of optical illusions. The back side is entitled, \"Science: Multiplies Eye Power\" and discusses the science of vision and its correction featuring the Snellen Vision Chart, an Astigmatism chart and a Color Discrimination chart.&lt;P&gt; Condition is quite good with excellent color and clarity of print. Foxing is present on the front side side of the chart where the Optical Illusion information is printed. A very small edge tear is evident on the bottom of the chart and is most readily seen in photos when viewing the bottom back side of the chart where the description of Color Discrimination is found. (please see photos)&lt;P&gt;A fabulous, mid-20th century retrospective on vision as well as 1950's optometry and opthamology! Would be fabulous framed between two pieces of plexi-glass to facilitate display on either side!"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.stonegateantiques.net/items/1167820/1956-DoubleSided-Educational-Eye-Vision-Chart-New-York>