No need to feel sorry. I don't exist in your world - the world of the fresh thinker.
What is "goodly"?
Being of a self-proclaimed brilliant mind, I would have thought that you could establish that yourself. But, here's a clue, seeing as you're clueless, the dressed column at Mons Claudianus - the one which resembles the seven at the Pantheon - is 18m X 2.3 m. The unfinished one would be about the same size. So, out with the scientific calculator - or just a pencil and paper.
As for dating wedge marks? Only a fresh thinker could ask such a ridiculous question.
Whether, or not, you "might feel more prone to acquiesce the point," is entirely irrelevant, as are your self-aggrandizing, puerile comments on this board.
And, as for your accepting this block as "hard evidence." It has been abundantly clear since your first forays onto this board, that you would be oblivious to the reality of such an object, even if it was proctologically inserted.