Blue Paint Mark on Steering Column

[rich69rs]

The attached PDF file contains two pictures of the steering column in my '69 RS back in 2005 when I was reassembling the front end.  After cleaning the column, the blue paint mark appeared.  I am assuming an inspection mark of some sort?

I know someone out there has the answer.

Thanks

Richard

[JohnZ]

Probably from a random-sample inspection at Saginaw; my '69 is an untouched original, and doesn't have any blue marking on it.

[rich69rs]

Thanks John