I have attached the build records for both Old Town canoe #13868 and 138681. The last seems a possibility. One easy way to quickly determine the right era is by looking at the gunwales. If they are closed, then it's an early boat. If they are open, then it may be the 15-footer from 1943.
#13868 was an 18-foot canoe built in 1910, so that's probably not it. #138681 was a 15-foot CS 50-pounder built in 1943 and shipped to Woonsocket, Rhode Island. It had open spruce gunwales; ash decks, thwarts and seats; and a keel. It was originally (bright?) green.
I've attached both build records. The difference between a closed gunwale and an open gunwale can be seen in the other two images. The one where you can see the slots between the ribs is the open gunwale.
Norm