Welcome and congratulations, the Old Town canoe with serial number 66218 is a 16 foot long, AA (or top) grade, Ideal model with red western cedar planking, open mahogany gunwales, mahogany decks, mahogany thwarts, mahogany seats, half ribs, and a keel. It was built between May and July, 1921. The original exterior paint color was dark green. It shipped on December 9th, 1921 to Wilkes-Barre, Pennsylvania. 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. 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 this canoe could have another number or manufacturer if this description doesn't match. Feel free to reply here if you have any other questions.