Can you supply some pictures of the serial number and the canoe because the Kennebec serial number 11881 is a 17 foot long square stern model with sponsons that was built in 1917. The Carleton and Old Town records for this number don't look like a torpedo model either. All of the records for number 18811 are no better. Some dimensions and a listing of any other unusual features might help if you can't attach any pictures. Which digit is the least clear and do the numbers on each end match? Thanks,
The Kennebec canoe with serial number 11381 is shown on pages 494 and 495 of volume two in the Kennebec ledgers. This was assigned to 17 foot long Torpedo model. It was planked by Lane on June 5th, 1916. Roy canvased it and applied the first filler coat on June 7th, 1916. Roy applied the second filler coat on August 4th, 1916. C. Toulouse added the rails on June 12th, 1917. The color column entry is blank but it appears to have been shipped to Chas Williams on June 15th, 1917.
The scans of this build record can be found by following the links at the attached thumbnail images below. These original Kennebec records are reproduced through the courtesy of the Maine State Museum.
The microfilms and scans of these records were created with substantial grants from the Wooden Canoe Heritage Association (WCHA) as you probably know well. I hope that you will renew your membership or contribute 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 renew.