One would think that they used a jig to locate the emblems.
You can buy a cheap bore scope that may work for you if there is a small hole to feed it through. Or make one then use a snap plug. But then how do you measure it ? Try looking at it with a 10x jeweler's loop.
My 9193 is original so I also will measure for you if needed.
Could be some fun Pantera trivia to know the location of others.