Welcome to the WCHA. The Old Town canoe with serial number 115543 is a 16 foot, CS grade, HW (Heavy Water) model with Western red cedar planking, open spruce gunwales, oak decks, oak trim, a keel, sponsons, rowlocks (oar locks), mast seat, mast step, and a rudder. It was built between February and July, 1935. The original exterior paint color was dark green. It shipped on July 30th, 1935 to Portland, Maine. A scan of this build record can be found by following the link at the thumbnail image attached below.
These scans 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/catalogs/old-town/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/wcha/ to learn more about the WCHA and
http://www.wcha.org/join.html to join.
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. Good luck with your repairs.
Benson