Clutch assembly paint mark

['72 LeSabre]

I'm working on my 1947 Roadmaster.  There is a paint mark on the side of the clutch assembly.  Could this be a color code for the factory assembly line?  Just wondering.  I far as I can tell, the car has not been restored or molested.

 

Thanks,

 

Ashby

[JFranklin]

PP springs were usually color coded. Maybe a rebuilder reused cleaned springs and put the code on the plate or something along those lines. If I saw similar on the flywheel I would think it was an index.