Original engine colors??????

I have a '69 340 that is, and always was, that "Corporate Blue". I think we have verified that '69 340s came in red, orange, blue, and turquoise! Take your pick... there is no rhyme or reason to it.
I don't think we verified anything!!!!! Other than 69 340s came in turquoise. I've seen no pictures of early red ones from 69 or no pictures of late orange ones from 69 in original paint I really don't think they exist the pictures that is I'm not sure about the motors. I guess we should have took done better jobs of all these years of documenting these cars that everybody's worked on it had owned or even went and just looked at at the end of the day it's a moot point and I appreciate everybody chiming in.