mosrite bass

This build belongs in the Partial Build category because I will be re-using the neck. In fact, I will be constructing this instrument almost entirely from parts and wood on hand. - shape inspired by Mosrite Ventures because surf, duh. I made the templates a while back, with a few approximate...

I have a Celebrity Bass with a 2 screw neck. Most Celebrities I see have 3 or 4. Is this an early model? Can anyone tell me what I have here ?