The Old Town canoe with serial number 135278 is a 17 foot long, AA (or top) grade, Otca model with open mahogany gunwales, mahogany decks, mahogany thwarts, mahogany seats, a keel, a floor rack, a painter ring, and a bang plate along the full length of the keel. It was built between April and July, 1942. The original exterior paint was similar to the one shown at
http://www.wcha.org/catalogs/old-town/designs/design37.gif which was known as the design number 37. It shipped on July 22nd, 1942 to Easton, 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 others were created with substantial grants from the Wooden Canoe Heritage Association (WCHA) and others as you probably know well. 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 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 renew.
It is also possible that you could have another number or manufacturer if this description doesn't match your canoe. Feel free to reply here if you have any other questions,
Benson