The Old Town canoe with serial number 143781 is an 18 foot long, CS (common sense or middle) grade, square end paddling model with red western cedar planking, open spruce gunwales, ash decks, ash thwarts, ash seats, half ribs, a keel, outside stems, sponsons, a rowing seat, and row locks. It was built between January and March, 1946. The original exterior paint color was maroon. It shipped on May, 1st, 1946 to Forest Station in Brookton, Maine. The back side of the card indicates that it retuned on February 24th, 1949 to be repainted. It came back again on September 15th, 1958 for repairs, recanvas and refinishing. These were finished on November 13th, 1958 and it was picked up on June 10th, 1959. Scans showing all of these build records 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 also possible that you could have another number or manufacturer if this description doesn't match the canoe. The 1946 catalog at
https://www.woodencanoe.org/_files/ugd/537308_776124813b6849f28c495680b5ff1e01.pdf has more details on page 14. Feel free to reply here if you have any other questions.
Benson