The Old Town canoe with serial number 46202 is an 18 foot long, AA (or top) grade, HW (Heavy Water) model with red western cedar planking, closed spruce gunwales, mahogany decks, mahogany thwarts, mahogany seats, a keel, a floor rack, and sponsons. It was built between October, 1916 and January, 1917. The original exterior paint color was dark green. It shipped on January 12th, 1917 to Detroit, Michigan. A scan of this build record can be found by following the link at the attached thumbnail image below.
This scan and several hundred thousand more 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. The 17 at the end of the serial number in your picture indicates a 17 foot long canoe so a tape measure will be necessary to confirm the extreme overall length of this canoe. There may be an error stamped on the stem or on the build record. The relatively thin thwarts without any diamond headed bolts would be correct for an Old Town from this period. See
http://forums.wcha.org/showthread.php?12413 and
http://forums.wcha.org/showthread.php?3968 for some other examples of similar Old Towns from this era. The seats and diamond headed bolts appear to be much newer than the rest of this canoe. The 1917 catalog lists a 34 inch width for a 17 foot long HW model so the thwarts may have been replaced with longer ones as well. Can you include a picture of the full serial number from the other end as well? Do the decks appear to be made from mahogany? Are there any screw holes left from the sponsons or the floor rack supports? Feel free to reply here if you have any other questions. Thanks,
Benson