Sounds like mix-match parts. Old 60's covers had a nub for a pointer and the numbers were on the balancer. Later 60's and through the 70's the numbers were on a timing tab on the cover and the balancer just had one mark. And then there were the covers that had a bolt on timing tab and a single mark on the balancer.
Most all these parts interchange and you have to come up with your own way to make marks and set timing. This has been covered a few times here. If you could post a pic of the passengers side of the timing cover, we can probably get you headed in the right direction.
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