Muncie Transmissions Paint Markings

[CamaroNOS]

I am looking for information regarding the factory paint dabs/markings on the exterior of a M20, M21 and M22 for a 1969 Camaro.
The factory applied these paint dabs to quickly identify them while they were being installed on the line, with a stripe/dab over the side cover and again over the tailstock.
Can anybody forward some original pictures or inform me of the specific colors that were used to identify the three different transmissions?

Thanks for all your help SYC!