Welcome and congratulations, the Old Town canoe with serial number 46789 is a 16 foot long, CS (Common Sense or middle) grade, Charles River model with red Western planking, open spruce gunwales, birch decks, birch thwarts, birch seats, a keel, and a floor rack. It was built between November, 1916 and July 1918. The original exterior paint color was dark green. It shipped on August 6th, 1918 to Portland, Oregon. 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 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
http://www.wcha.org/about-wcha to learn more about the WCHA and
http://www.wcha.org/store/membership to join.
It is also possible that you could have another number or manufacturer this description doesn't match the canoe. Feel free to reply if you have any other questions.
Benson