Dave: The Old Town canoe with serial number 159770 is a 16 foot long, CS (Common Sense or middle) grade, OTCA model with a keel. It was built between April and June, 1953. The original exterior paint color was dark green. It shipped on June 26th, 1953 to Springfield, Massachusetts. 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/wcha/ to learn more about the WCHA and http://www.wcha.org/join.php to join.
It is also possible that you could have another number or manufacturer if this description doesn't match your canoe.