Yes, the serial numbers are stamped in both ends. I periodically troll through eBay, craigslist, classified advertisements, auction listings, and other sources of information about canoes for sale and save the pictures of canoes which interest me (including the serial numbers like this one). That picture was added to my archive in May of last year. The Old Town serial number 703449 was probably issued in the late 1990s or early 2000s and is not likely to have gone on a wooden canoe. (These records are not kept on paper now and are not available for research.) Your pictures appear to show a canoe that is much more than twenty years old. Let me know if you want more details. Thanks,
Benson