Searching around and finally found it with a flash-light. This is an older frame (just past Mid 90’s- 1996-’97 date), but not an XR3-Red frame. Whatever.
UPDATE:
There’s no “RED” written anywhere, but it seems to be the XR-3 “red” frame, which is not red in color at all but short for REDesigned (?) wtf, and the same as the Super Blackhawk, or not, or something. Sheesh. All this because I was thinking of getting some replacement grips. People are funny, the diagram for the grip-frame differences is drawn in black for the XR3-RED, and in red for the Super Blackhawk… 🙂