Welcome and congratulations, my guess is that you have the Old Town with serial number 168270. This is a 15 foot long lapstrake 16 fisherman outboard model boat in AA (or top) grade with a keel, outside stems, and a floor rack. It was built between December, 1958 and January, 1959. The original exterior was white with a red bottom. It shipped on February 11th, 1959 to Wilmington, Deleware. 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 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 if this description doesn't match your boat. Feel free to reply here if you have any other questions.