Identify this new tail light assembly

To me it looks like a mid-sixties Chevrolet unit. Marking is "GUIDE 15 SAE RB 65", so a 1965? Part number written on the bag it was in is 910708. Thanks, Dave

 

‘65 Impala I believe.

 

Ummm..... Yeah!

 

Thanks for the replies as I was sent in the right direction. It is for a 1965 Impala and it appears to be the right side only backup light ***embly. The chromed bezel is taller on the right side than it is on the left side. The housing that the lens is mounted on also is just made for one side or the other. Dave