Help-old bass need help dating it

[Wlbass13]

I have an old Ventura Hollow body bass that my dad found me. It seems vintage and all I just have no idea. I'm really interested in finding out what the year is on it. Does any one have any knowledge of it? It would be greatly appreciated! Attached is a picture.

[og61pbass]

guitardaterproject.org. I dont know if they can do that brand but its worth a try...

[Wlbass13]

Thanks a lot ill check it out!