Keith, I think your picture may be upside down IMHO --- Far as I can tell from all I have looked at Bruce has it correct. My 56 hood emblem looks just like the 57 (6 cylinder), and I think that's what you have, a 56 or 57 turned upside down. The only difference between the two that I can tell is on my '56 the bowtie is red, background black. The 57s I've seen are reversed, bowtie black, background red. If there is any difference in shape or attachment I can't tell from just lookin'. Would have to get out the micrometer. Dale