Passports for passengers between Mainland Japan and Okinawa during 1952-1972
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Uploaded to commons by <a href="//commons.wikimedia.org/wiki/User:%E3%81%82%E3%81%B0%E3%81%95%E3%83%BC" title="User:あばさー">Abasaa</a> on 27 September 2008.
<a rel="nofollow" class="external autonumber" href="http://page.freett.com/gpzagogo/pass.html">[1]</a>(The Period of Highway 1).