Did quite a bit of research and couldn't find another like this design. Its possible that it is a prototype grill, or a limited production. Shows heavy amount of burning and wear.
There is a hole in the back of the aluminum (looks factory). Embossed in the back is Moldcast 2 and 261D480. 21 inches long x 11 3/4 inches wide. Feel free to ask any questions.
This item is in the category "Home & Garden\Kitchen, Dining & Bar\Small Kitchen Appliances\Grills & Griddles". The seller is "upstatepicker24" and is located in this country: US. This item can be shipped to United States.