I just bought a G4 with the serial number 1548. That number is lower than the 1560 that is listed by Czypete in his incomplete guide (which is quite complete) I paid $175 CDN for the saw, so that is just peanuts in US dollars.
My saw is missing some pieces - the finger assembly, clamp, light and guard.
Here are some pictures



It even has an oiler, which I gather is to oil the blade.


The rubber bumpers are completely worn away for my table.

It is hard to see the serial number but if you zoom in you can read it.

I am excited to get the saw up and running. It has a 3/4 HP motor but it is a new motor so I will look for and old one that suits it better.
There is some play in the tables so I will try to tighten them up.
Karen