'I guess a 'score' has gone the same way as a 'gross' (144)' a 'dozen' (12), a bakers dozen' (13), a and of course the derivatives a half dozen (6), a third of a dozen (4) and a quarter of a dozen (3), all of which were in daily use in England in my youth together with pound, shillings and pence with 240 pennies to the pound and farthings were legal currency at a quarter of a penny. Guess I am getting old!