70 LS6 / L78 timing cover

[Daves70SS]

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BB 69 solid lifter & 70 solid lifter & 70 454 Hydraulic lifter engines used the same Timing cover.Part #3935444.
The covers design was revised begining with the 1971 models.

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Rick,I saw a cover that was suppose to be the original cover on a 1968 engine that had a timing tab that looked the same as the one used in 1970 with the A O R and angled cut at the top,is there some other difference in the 1968 cover or tab that I didn't notice because it was already installed?
Do you have a picture of a 1970 cover showing a close up of the tab at different angles?
Thanks,
Dave