Is it blue or park? Is that appropriate for the serial number range?
How "correct" the pistol is helps determine the value as well as condition. Is the frame an RR as well as the slide and do the conditions match? What does the barrel look like? Do all the external parts like backspring, hammer, safety and slide stop all have the same chequering?
Pictures would be nice.
You could see as little as $500 and as much as $1,000 - $2,000 depending upon some other small details.