I was told this was a Sony plate on the tripod. The item "Miller Arrow 40 Head & Carbon Fiber 3 Stage Legs Tripod Sony Camera Plate" is in sale since Wednesday, January 8, 2020. This item is in the category "Cameras & Photo\Tripods & Supports\Tripods & Monopods". The seller is "tnpawnman" and is located in Madison, Tennessee.
This item can be shipped to United States.