Here is a picture of an original Golden Nugget High Top I owned. Maybe this will help to identify the fakes. Note the large chrome plated cast brass pay tray trim that wraps around and down the sides of the machine. This same trim is also on the half top versions. So if you don't see this pay tray..............run the other way. The top casting on ever original High Top version I have seen is off of a Bonus High Top and NOT a regular High Top. So when you look inside the cabinet, you want to see a Bonus top casting.
Watlingboy