Tally marks (link). Harry Belefonte sang a song that uses the term, Day-O (the Banana Song)[/i]. "Come, Mr Tally man, tally me banana." Is thought that Roman numerals derived from a tally system. (The Greeks and the Phoenicians used letters of their alphabets to stand in for numbers: alpha and aleph standing for 'one'.)

Ceci n'est pas un seing.