Blue inspection stamps

[David K]

Guess I've been living under a rock. From a 68 for sale on ebay

[David K]

2

[x66 714]

They're faded because of the hood being off the car so long. They were green....Joe

[David K]

I'll buy that. Green and orange. Any reason why?

[cook_dw]

1st vs 2nd shift most likely if memory serves.

[firstgenaddict]

1st vs 2nd shift most likely if memory serves.

Over the years that is what I have taken from all of the discussions amongst those who would have insight into the reason for the differences as well.