I agree with Dave and Paul that this doesn't look like a 1912 canoe. It appears to be a 17 foot long canoe with open gunwales and ash trim, not a 16 foot long one with closed gunwales and birch trim.
My guess is that you really have the Old Town with serial number 123820. This is a 17 foot long, CS (Common Sense or middle) grade, HW (heavy water) model with open spruce gunwales, ash decks, ash thwarts, ash seats, and a keel. It was built between December, 1937 and June, 1938. The exterior paint color was dark green. It shipped on July 27th, 1938 to Whitehall, New York. A scan showing this build record and the one for serial number 23820 can be found below.
These scans 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/catalogs/old-town/records/ if you want more details. I hope that you will donate, join or renew your membership to the WCHA so that services like this can continue. See
https://www.woodencanoe.org/about to learn more about the WCHA and
https://www.woodencanoe.org/shop to donate or join.
It is possible that you could have another number or manufacturer if this description doesn't match your canoe. The information at
https://www.wcha.org/forums/index.php?threads/57/ should help you answer the worth question as Paul mentioned. A listing at
https://www.wcha.org/classifieds is usually the fastest way to find a good new home for a canoe like this. The process is briefly explained at
https://forums.wcha.org/index.php?threads/16513/ if you want to proceed. Feel free to reply here if you have any other questions. Good luck with the sale,
Benson