We call them "plate vaults.". Plate is made of plastic. The plate may have dings, rust, scratches, scuffs or bends.
1948 1985 Nascar 50th Anniversary Booster License Plate Racing Motorsports
1948 1985 Nascar 50th Anniversary Booster License Plate Racing Motorsports Blue
Nascar 28 Car Booster License Plate Davey Allison Ernie Irvan Bobby Allison Rudd
Nascar 24 Car Booster License Plate Jeff Gordon William Byron Chase Elliott
Nascar 6 Car Booster License Plate Mark Martin Coton Owens Ryan Newman Stenhouse
Steve Park 1 Penzoil Chevy Nascar Monte Carlo Booster Front License Plate
