'Silver pieces' in the Bible

“You just saw him!” Joab exclaimed. “Why didn’t you strike him to the ground right there? I would have given you 10 silver pieces and a belt!”

And the man said to Joab, Though I should receive a thousand silver pieces in my hand, yet would I not put forth my hand against the king's son; for in our hearing the king charged thee and Abishai and Ittai, saying, Take care, whoever it be of you, of the young man Absalom.