! pipedum_19b.scl ! 225/224, 3136/3125, 4375/4374, Op de Coul, 2000 19 ! 25/24 15/14 10/9 7/6 6/5 5/4 9/7 4/3 25/18 36/25 3/2 14/9 8/5 5/3 12/7 9/5 28/15 48/25 2/1