Steve,
Old Town serial number 70704 belonged to a 17-foot CS (common sense) grade OTCA that was built in 1922 and shipped to Manchester, N.H. It had open spruce gunwales and birch decks, thwarts and seats, plus a keel and a floor rack. Its original color was dark green with an oil in Japan process that I believed help in drying, but I'm not sure.
Old Town #170184 was a 16-foot OTCA with a keel that was built in 1960. Its original color was fire red, which I'm assuming is close to what's in the picture you sent.
The scans of these records are attached below-- click on it to get a larger image. These scans and several hundred thousand others were created with substantial grants from the Wooden Canoe Heritage Association (WCHA) and others.
Norm