I have for sale the speaker cover bezel and grille for a 1955 and 1956 Chevrolet passenger car. I believe these pieces are the same for 150, 210, and Bel Air. I consider it to be in driver condition. The chrome has bumps. The top portion of the speaker grill is loose, so you may want to put a couple small drops of JB Weld or possibly even solder up in the corners.
$19