This is a 1957 Chevy 4 by 4.Like the grill in a 55/56 better but like the peaks on the hood of 1957.The hood badge is the only way I tell a second gen 55 and 56 apart.56 looks much like this one with the longest parts of the badge hugging the bottom front of hood.1955 is allmost like you turned the shape over and longest part on top of emblem.