If I remember correctly, the data plate is aluminum & the info was screen printed on that plate, the some body painted over it. I seriously doubt that it was stamped. If it was, that paint is on there very, very thick. It is a shame that it wasn't taped over before they painted the machine.
It started up & ran wonderful. It was set outside for about 3 years, before I got it. I'm trying to get it together, to try to sell it. It needs some brake, tires, battery & alternator work to be put back in service. I think that the master cylinder is seized up. I'm having to guess that the wheel cylinders might be as well = GO FIGURE!!