The Old Town canoe with serial number 210994 is a 16 foot long Chipewyan model. It was built in December, 1975. The original exterior color was avocado. It shipped on May 2nd, 1977 to Rochester, New York. The back side of this scan shows that it was purchased on June 22nd, 1978 and stayed in Rochester, New York. Scans of both sides of this build record can be found by following the links at the attached thumbnail images 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 doesn't match your canoe. Feel free to reply here if you have any other questions.