Congratulations, the Old Town canoe with serial number 11050 is an 18 foot long, CS (common sense or middle) grade, XX model with western red cedar planking, open spruce gunwales, twenty inch oak decks, a middle thwart, and a keel. It was built between April and May, 1909. The original exterior paint color was white. It shipped to Minneapolis, Minnesota on May 24th, 1909. A scan of this build record can be found below.
This scan and several hundred thousand more 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/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 renew.
It is possible that you could have another number or manufacturer if this description doesn't match your canoe. The seats appear to have been replaced. Feel free to reply here if you have any other questions. Nice find,
Benson