Harold,
Does your canoe have a factory tag indicating that it is an Old Town? Because quite a number of canoe companies used this serial number format, and because "Old Town" has become somewhat synonymous with "old wooden canoe", you could easily have a canoe made by another manufacturer. Photos posted here would almost certainly draw out the actual maker if not Old Town, or you could give good descriptions of key features such as deck shape, stem cross-sectional shape, etc. On the other hand, if it is an Old Town, photos would help viewers corroborate the general age of the canoe. The style of Old Town canoes has changed gradually but significantly over the years, and design can easily help determine the general age of a canoe.
Michael