Now Im do not know the exact history of this car but I think it was ordered along with a 69 Chevelle for a guy in Mexico.. Not sure when he purchased it though..
EDIT:
Ahh.. Here we go..
http://www.carguychronicles.com/2011...in-motion.html
You also have this 68 with the L88 hood. Again I do not know the history outside of what is mentioned on Mecum site when it was for sale in 2016.