This is a truss rod cover that came with a collection of parts for a Memphis ES-335 TDC that I purchased. The previous owner said it was a Montreux truss rod cover and that it was unused. When I searched for the Montreux part number, I couldn't confirm a truss rod cover with the same pattern, so it may be discontinued. There's also a possibility that the previous owner forgot that they swapped a Gibson original for a Montreux one, so please judge from the images if you need it. Please only purchase if you are satisfied after checking the images. Please refrain from purchasing if you are overly sensitive. Thank you for looking.