My Rockwell and Park-o-meter are now open and ready to be cleaned up.
As you can see from the above photos, the POM needs new plexi, but the Rockwell is in very good condition inside and out!
The Rockwell works like a clock, but the POM has some rust inside and the small watch like mechanism on the back is rusty, plus the coins will not insert, although the mechanism will turn using the master knob? (Not sure what this is called...but the knob the meter maid can stick the tool into to reset the meter.)
Next, on to the locks of the Duncan Miller. Might try a locksmith before I drill them out.