This is the first time I have ever seen a Parker 88. It is the same size as a Parker Vector and seems to be like a high end Parker Vector. I believe that this model was from the late 80s.
As you can see it does look like a Vector. These Vectors are one of the most common advertising pens out there. Roller ball is what I have and seems to be the most requested. There is also a fountain pen and a ball point.
This Parker 88 should be a roller ball but turns out to use the Parker Jotter refills. That was a surprise to me. This Parker 88 has a very nice blue and red with gold trim. The pocket clip has feathers while the Vector does not. Add one to your collection.