Paint code mystery - COA and paint tag don't match Options

[morsmanlaw]

I just noticed this week that the COA and paint color of the car do not match the paint code found on the door jamb of my '75 2.0.

According to the COA (I have the jacket for the COA, so it's not a fake), the original color is "Scarlet (Mars) Red/H3." Although the car has been repainted, it's clear from parts that were not repainted, such as around the brake master cylinder and fuel tank, under the carpet, etc., that this is the original color of the car.

However, the paint tag on the front of the driver's door jamb gives the paint code as "L 20 C," which is Nepal Orange. There isn't a speck of Nepal Orange on the car.

The chassis number on the door jamb tag matches the number on the tag near the right headlight support in the front trunk, so it's incredibly unlikely that anyone has ever switched the paint code tag from another car. This car is in very good condition - no rust, and no signs of ever having any body work done. I have records back to the original owner, as well.

Any ideas on how the paint code tag can be wrong?