http://www.searchreslt.com/old-postcard/
What is the best way to find the value of an old postcard?
The postcard was printed in Japan and mailed home by a U. S. sailor in about 1913.
contact an appraiser or someone who has expertise in antiquities and vintage items. or you can go to a museum and contact a curator and they can validate the value of it for you.
Sequoia National Park DVD Postcard – OLD