Maybe $425 give or take, assuming it is blue.
About 300 stainless made, most are 6.5" but it is rumored that there were a few shorties. The SS 6.5" is in the $900-1000 range for NIB. A 4-5/8" would be tough to value, but certainly "more". There is one pictured in the Ross book but is widely believed that that gun was just a .357 with an extra cylinder shown for effect.