I posted this question at thefiringline.org, but wanted to get as many opinions as possible. I was holster shopping for this revolver, when the owner of the gun store looked at it and said that it had been re-blued. I am not the first owner of this revolver, so I wouldn't know it's prior history, but it appeared new to me and unfired.
In any case, the store owner told me that it should have sharp edges; that and the purplish hue on cylinder release indicated to him that it had been re-blued and turned into that hue because spent too much time in the vat.
I don't know anything about re-bluing, and am wondering if he is right or if Colt happen to mess up the bluing on that part. The revolver shoots great and I got it for a great price, so no complaints either way, just curious.