1973D and 1974D have nothing known that would warrant busting a bunch of rolls just to look for something. And they wouldn't be 'errors' - they would be 'die varieties'. Nobody ever knows whether errors will or will not be in any given date because of the nature of how they are made. Die varieties, on the other hand, are a lot easier to track - yet another thing that makes them NOT errors.
There are a couple of decent 1973D repunched mintmarks, but they are rather difficult to locate. I buy 1973D and 1974D rolls at $1 each.
There are a couple of decent 1973D repunched mintmarks, but they are rather difficult to locate. I buy 1973D and 1974D rolls at $1 each.

























