Welcome and congratulations, the Old Town canoe with serial number 100278 is an 18 foot long, CS (Common Sense or middle)grade, HW model with western red cedar planking, open spruce gunwales, birch decks, birch thwarts, birch seats, a keel, outside stems, a floor rack, and sponsons. It was built between December, 1928 and January, 1930. The original exterior paint color was dark green. It shipped on February 11th, 1930 to Poughkeepsie, New York. A scan showing this build record can be found 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/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. Page seven of the 1930 catalog at
https://www.woodencanoe.org/_files/ugd/537308_e6109d7cec504810bdd83abf02a3352e.pdf has more details. Feel free to reply here if you have any other questions.
Benson