TOPIC: Glastron CVX-16 Identification

I'm pretty excited about a Glastron Carlson I picked up. Need help identifying year and model. I see conflicting info on the web. Registration states 1974 15ft. It appears to be a CVX-16 Deluxe from pics of sales ads and other pics I've found on internet. Doesn't show in Glastron sales lit until '77. Has a Merc 135 on it so doubt it's a 15 ft boat. Measured 15' + transom at motor mount to bow but, that's inset in the stern of the boat

Post the serial number & the year can be identified