Welcome, the Old Town with serial number 176080 is a 16 foot four inch long lapstrake 1720 model boat with a deck and a floor rack. It was built between April and June, 1966. The original exterior finish was left clear to show the natural wood. It shipped on July 18th, 1966 to South Thomaston, 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. 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 https://www.woodencanoe.org/pricing-plans/join to donate or join.
It is also possible that you could have another number or manufacturer this description doesn't match the boat. Feel free to reply if you have any other questions.