The Old Town canoe with serial number 53713 is 16 feet long so my guess is that you have the one with serial number 153713. This is a 20 foot long Guide model with white Maine cedar planking, open spruce gunwales, half ribs, a keel, and sponsons. It was built between December, 1949 and December, 1952. The original exterior paint color was G. S. (Guide's Special) Green. It was shipped on March 16th, 1953 to Lewiston, Maine.
This scan and several hundred thousand others were created with substantial grants from the Wooden Canoe Heritage Association (WCHA) and others. A description of the project to preserve these records is available at
http://www.wcha.org/ot_records/ if you want more details. I hope that you will join or renew your membership to the WCHA so that services like this can continue. See
http://www.wcha.org/about-the-wcha/ to learn more about the WCHA and
http://store.wcha.org/WCHA-New-Membership.html to join.
It is also possible that you could have another number or manufacturer if this description don't match the canoe. Feel free to reply here if you have any other questions.
Benson