Possible original 67 barracuda

Ok, I have to know, what clues you in on the fact that the above parts are 68? The person I am buying from is a ford an chevy guy. Is it possible this is a late 67 which would be sold as a 68?

Also, what is the header panel?

John :prayer:

The '67 & '68 hood ornaments are different but both bolt up the same. The ones on this car look like '68s. The placement of the mirror on the door is different on '67s. It is farther forward than whats on this car. The header panel (part the grilles bolt into) is also different. '67 had individual P L Y M O U T H letters across the length of the header panel & '68s have the smaller Plymouth emblem just above the left grille surround.