Nice gun. At least those are factory optional premium grips, just a later vintage.
Specifically you have an early 4 screw "Model of 1953 .32 Hand Ejector" built on the new I frame. It was designated the Model 30 in 1957 and therefore is nicknamed a Pre Model 30 by collectors.
It needs a polish with Flitz, Semi-chrome, or Mothers Mag wheel polish to look like new again.