Sony SUWL830 Wall-Mount Bracket with Swivel for X930E/X940E Series TV. This was made by Sony specifically for these two TVs from several years ago. It will work with other TVs that have the same mounting hole spacing. I'm hoping a knowledgeable person sees this and can use it. I'm not espcially knowledgeable on TV VESA mounts so please don't ask me if it will work for your TV.
Some details on this page: https://www.crutchfield.com/S-Apds0jNc7mV/p_158SUWL830/Sony-SU-WL830.html