The Old Town canoe with serial number 167146 is a 16 foot long Otca model with a keel. It was built between January and July, 1958. The original exterior paint color was dark green. It was shipped on August 14th, 1958 to Alton, New York. A scan of this build record can be found by following the link at the attached thumbnail image below.
This scan and several hundred thousand others 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/ot_records/ if you want more details. I hope that you will join or renew your membership to the WCHA so that services like this can continue. See http://www.wcha.org/about-the-wcha/ to learn more about the WCHA and http://store.wcha.org/WCHA-New-Membership.html to join.
It is also possible that you could have another number or manufacturer if this description don't match the canoe. Feel free to reply here if you have any other questions.
Benson Gray, thank you the information is correct. This canoe was purchased by my grandfather. We will use it this weekend for the first time in many years.