The Old Town canoe with serial number 80350 is an 18 foot long, CS (Common Sense or middle) grade, Guide's Special model with red Western cedar planking, open spruce gunwales, birch decks, birch thwarts, birch seats, and a keel. It was built between September, 1923 and February, 1924. The original exterior paint color was dark green. It shipped on June 5th, 1924 to Harrison, Maine. 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 join.
It is also possible that you could have another number or manufacturer if this description doesn't match the canoe. This information is also available from
https://www.wcha.org/forums/index.php?threads/514/ in a lower resolution. Let me know if you have other questions or if there is anything else that I can do to help. Thanks,
Benson