I can see a serial number on the bridge plate in those pictures. Right in front of the middle saddle. Looks legit to me. Looks to be from before they...
If you are using open strings to bend against, that's a lot harder than double stop bends staying in tune with a floating tremolo. You would need to...
Yeah, that looks like the attachment screws or bolts are loose, allowing the nut to shift out of place.I would loosen the strings, push the nut back...