Hello, since I think the grille is from a DeSoto, it should be Mopar related. LOL A relative had this in his garage, and unfortunately it is time to clean house. Looking up DeSotos, I feel it if from somewhere between 51-55. The front view makes me think 54, but the pictures I see online are usually longer. DeSotos had between 7-11 teeth along the years. This has 9, same as a 54. This is a popular style grille with the street rod crowd, especially for 50's Mercurys. Any help the Moparts crowd can offer would be greatly appreciated. Thanks, Kevin