Welcome and thanks for joining, the Old Town canoe with serial number 173477 is a 17 foot long Otca model with half ribs, and a keel. It was built between November, 1963 and April, 1964. The original exterior paint color was pale blue. It shipped on April 8th, 1964 to Portland, Oregon. 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 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 renew.
It is also possible that you could have another number or manufacturer this description doesn't match the canoe. Feel free to reply if you have any other questions.