Welcome and congratulations, the Old Town with serial number 135553 is a 15 foot long, CS (common sense or middle) grade, Ojibway model with open spruce gunwales, mahogany decks, mahogany thwarts, no seats, and a keel. It was built between June, 1942 and December, 1943. The original exterior paint color was aluminum. It shipped on December 17th, 1943 to Grand Rapids, Michigan. A scan of this build record is attached 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/catalogs/old-town/records/ if you want more details. I hope that you will donate, join or renew your membership to the WCHA so that services like this can continue. See
https://www.woodencanoe.org/about to learn more about the WCHA and
https://www.woodencanoe.org/shop to donate or join.
It is also possible that you could have another number or manufacturer if this description doesn't match the canoe. Can you provide a picture of the deck? Let me know if you have any other questions. Thanks,
Benson