Hi - We are working on an Old Town that was bought by our grandfather from his mother's store in 1918 and has been in the family this whole time. My wife and I just picked it up from a family member today so that we can care for it. We could really use some info on it from the serial #43723. There was a space after the serial # which had an '18' stamped which we thought was either for 1918 or 18'. Any help would be appreciated. Thanks!