Harvey/Two-Face's pistol

[RonnieTwoFace]

Could anyone help me figure out what model pistol Harvey uses, given to him by the Joker in the hospital? Thanks.

 

[Mollins]

Well, it's a snub nosed revolver, I know that much

 

[Mollins]

After looking around, I think it's a Smith & Wesson Model 64-3