The Old Town, Carleton, and Kennebec canoes with serial number 12801 are all 17 feet long. The Old Town has closed gunwales as shown in the build record that Greg posted so that doesn't match the open gunwales shown in your picture. The Kennebec appears to have half ribs which aren't clearly visible on yours. My guess is that you have the Carleton canoe. This is a 17 foot long Carleton model in Reg. (Regular or middle) grade with open spruce gunwales, ash decks, ash thwarts, ash seats, a keel, and a floor rack. It was built between December, 1916 and March, 1917. The original exterior paint color was N. H. (New Haven Railroad) green. It shipped on March 26th, 1917 to Valley Park, Missouri. A scan showing the build record can be found by following the link at the attached thumbnail image below.
It is also possible that you could have another number or manufacturer if this description doesn't match your canoe. Can you post some pictures of the serial numbers from each end of your canoe and some pictures of the interior to help confirm this? Feel free to reply here if you have any other questions. Good luck with the restoration,
Benson