I found out it is a 1966 Catalina that is 15'6" long. It still is in great shape and I have already sailed it a couple times. It does not have a HIN # because they were not reqired until 1973.
1980 Coronado 15 (C15) at the right.It's Coronado 15. There are scads of them around the US etc. with many organized fleets. I believe there is a National Association for the class. Google Coronado 15, you'll surely get something useable.