[Baron Von Zeppelin]

The Trim Code for Green when it came in for 72 was E / 3.
And believe it was darker by several shades than what subject car is wearing.

Trim Code for Green in 73 was G / 5 and think it was more the Light Jade shade like shown on this car.
Subject car shows Code G on trim tag too.

Guy might have wanted a lighter shade than 72 Code E , and they made it happen ... idunno.

{Based entirely on data from UltimateGTO site .... fwiw}