Hello:
Please double check the serial #. In the Old Town build records, 56738 was assigned to a 16' CS grade 'Livery' model with western cedar planking, open spruce gunwales, birch decks, seats and thwarts, originally painted Dark Green. That canoe appears to first have been shipped to St. Louis in 1920, then re-shipped to Cuba in 1937. It is possible that you may have a make other than Old Town, or that the serial # as quoted has been misread.
Roger