Okay, and I now see that I left out one piece of information, myself. There was also a 6PMH series, which has a riser made from dyed maple. The 3PMH, 4PMH, and 5PMH were usually made from East Indian rosewood, but, maybe there are a few made from Brazilian rosewood. Again, the 6PMH series was made from maple, rather than rosewood.
So, John, I would now guess that you are interested in a 3PMH, 4PMH, or 5PMH to get the rosewood riser.
Ray