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Highway road sign acuity test - stereoscopic view, public domain photorpaph

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Highway road sign acuity test - stereoscopic view, public domain photorpaph

description

Summary

Stereoscopic eye chart for testing driver vision.
JP5422 U.S. Copyright Office.
Copyright by Keystone View Company.

date_range

Date

01/01/1957
person

Contributors

Keystone View Company.
create

Source

Library of Congress
copyright

Copyright info

No known restrictions on publication. No renewal in Copyright office.

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