The Old Town canoe with serial number 103959 is a 17 foot long, AA (or top) grade, Otca model with red western cedar planking, open mahogany gunwales, a keel, a floor rack, and a bang plate along the full length of the keel. It was built between December, 1929 and May, 1930. The original exterior paint was similar to the one shown at
http://www.wcha.org/catalogs/old-town/designs/design04.gif which was known as the design number four. It shipped on May 28th, 1930 to Scranton, Penna. A scan showing this build record can be found by following the link at the attached thumbnail image below.
This scan and several hundred thousand more 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 doesn't match your canoe. Please attach some pictures, especially if the original design is still showing. Feel free to reply here if you have any other questions,
Benson