The Old Town canoe with serial number 159166 is a 17 foot long, AA (or top) grade, Otca model with a keel, outside stems, and a floor rack. It was built between January and March, 1953. The original exterior paint color was similar to the one shown at https://www.wcha.org/catalogs/old-town/designs/design32.gif which was sknown as the design number 32. It shipped on April 2nd, 1953 to Baltimore, Maryland. A scan of this build record can be found below.
This scan and several hundred thousand others 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 also possible that you could have another number or manufacturer if this description doesn't match your canoe. Please attach a picture if the original design is still showing. Feel free to reply here if you have any other questions.