It’s called a “brown-marble” for obvious reasons. It just what I have. If you have the original white side-strips, get the clear ones from Charles McIntosh. If original bearings, replace them. There are also newer versions of the men.
The side-strips will allow bank shots.
The bearings are thinner on the side facing the table.
The men are a little different - you may get away with only replacing the shooting men.