Oklahoma state highway shield approximated to the 1924 standards. No actual standard is known to be accessible on the Internet for this shield, so this shield (including its digits) is completely approximated by photos and surviving specimens.
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Drawn and sent to the uploader for the express purpose of uploading to Wikipedia.
Any traffic control device design or application provision contained in this Manual shall be considered to be in the public domain. Traffic control devices contained in this Manual shall not be protected by a patent, trademark, or copyright, except for the Interstate Shield and any other items owned by FHWA.
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{{Information |Description=Oklahoma state highway shield approximated to the 1924 standards. No actual standard is known to be accessible on the Internet for this shield, so this shield (including its digits) is completely approximated by photos and su...
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