These mounts are always evolving, not sure thereís a way to tell or match what youíve got from a pic, you might find a make/model on the bottom or back if you remove it from the wall. Otherwise, not sure itís worth spending time trying to find a match, get one that has a larger mount plate or you can get a piece of 1/4 ply to cover the holes.
'03 Ford E350 7.3L Diesel
(de)SMB'd Custom RB-50
Quigley 4X4 w/Deavers & Agile Offroad's R.I.P. package
CCV High Profile Pop Top