The Old Town canoe with serial number 173426 is shown as an 18 feet long, CS (common sense or standard) grade Guide model equipped with a keel. The canoe was built between October 1963 and February 1964. The original exterior paint was Guide Special green. It was shipped to North Conway, New Hampshire on June 4, 1964. There was an inquiry about this canoe on March 1, 1980. Scans of this build record can be found by following the links behind the thumbnail images attached below.
[Our server is not allowing me to post the build record now -- I will try again later. However, as is common in the 1960s, no woods are specified on the build record. Odds are that eastern white cedar was used for the ribs.]
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.
Thanks for quick response. Some work was done it in the recent past (not very well I might add), hence more ribs need replacing and the usual ends are rotten. Want to bring it back to as close to original as possible, hence questioning the type of wood used.