Getting ready to put the engine compartment black back on (not restoring just freshening up) and I thought I would show the factory markings I found on the radiator support. I hesitate doing this (since I don't want people copying them) but I hope this motivates others to take the time to look to see what their cars have.
This car is a spring built 69 Dearborn car
These are the marks we sometimes (depending on plant and production year) find on the radiator support. They appear to have been applied to the bare steel as helper codes for other workers and painters who would later cover them with paint. It appears that the wax based crayons were absorbed into the metal and often are still there today if our cleaning methods are careful and we take the time to seek them out.
Sometimes the coding is fairly straight forward - things like first rotation number, exterior or interior color codes are found. Sometimes the coding is not understood so we just document so that if one day we done gain a greater understanding we have the information
Passenger side - Pretty straight forward exterior color code of "3" and a first rotation number that starts with the letter "A"
Letters and numbers were highlighted in paint by me so I could document the markings
Passenger side is allot more involved than I have seen on other cars and I have no idea what any of them relate to (wish I did) but really in the big picture not that important at this point
I traced over again with paint - this time in two different colors just to identify different letters and markings. Worked much better than all one color
Found the second rotation number (would match the upper left corner on the buildsheet - and elsewhere, if I had one
where I expected on the front cross member - unfortunately only one digit. Will have to search the interior for the rest of the numbers (001-999 was typical for most plants, most years during 64-70)