The Old Town canoe with serial number 138689 is a 16 foot long, CS (Common Sense or middle) grade, HW (heavy water) model with open spruce gunwales, ash decks, ash thwarts, ash seats, a keel, and a floor rack. It was built between October, 1943 and January, 1944. The original exterior paint color was dark green. It shipped on April 24th, 1944 to Shreveport, Louisiana. 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 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. Feel free to reply here if you have any other questions. Have fun with the steel fastenings,
Benson