Help ! No timing mark on the balancer, just the scale shown with no other marks ??

I'm assuming this is a 68 - 69 440 since it came with the 4429s carb ( which is 68 year ) There is NO timing mark on the harmonic balancer, just the scale shown with no indications of TDC or 0 or nothing Anyone have info ?? Do I need to go to the B Body site ?

I should add that I made a small tick mark with a dab of white paint on the 2nd larger indent and it did show up in my timing light, ( since removed because it was wrong ) so I'm in the ballpark, I just dont have a clue what...

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Author: WhiteGP