Looks like an ET/E with the long table option. I have a couple of ET/E's, one I just rebuilt and sold. I also have a couple of the ZT/E's , never heard of the ET/T model.First of all, congratulations are in order. So, congratulations! I love the work and the way you're treating the machines.
Now about this....
Funny fact: I'm in Romania, which is maybe one of the last places where you would think of finding genuine vintage Robinsons and Wadkins.
So let me add some pictures of the state in which you probably found the Robinson, if not worse. Not sure whether this is an ET/E or ET/T though.