69 Nova firewall paint codes as well as VIN numbers

[Kurt S]

Originally Posted by Grim70

Novas were always stamped there with the hidden vin. Camaros had a third on top the firewall. Reason? Who knows,

There were always two hidden VINs - this is due to the design to the stamper. An 'egg' was pushed across the stamp, causing the imprint. The stamper was relocated, the egg was pushed back to the original position, causing the 2nd imprint, and the stamper incremented one VIN number.
I don't know what department made the call on the hidden VIN locations....