Welcome and congratulations, the Old Town canoe with serial number 75622 is an 18 foot long, AA (or top) grade, Otca model with red Western cedar planking, open mahogany gunwales, twenty inch mahogany decks, mahogany thwarts, mahogany seats and a keel. It was built between December, 1922 and February, 1923. The original exterior paint design was shown on the 1923 catalog cover. See http://www.wcha.org/catalogs/old-town/covers/large-23.gif
for an example of this. It shipped on February, 19th, 1923 to Reading, Pennsylvania.
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 http://www.wcha.org/about-wcha
to learn more about the WCHA and http://www.wcha.org/store/membership
It is also possible that you could have another number or manufacturer if this description doesn't match the canoe. Please attach some pictures if the original paint design is still showing. Feel free to reply here if you have any other questions.