height 0" - 1"

57 - 1 1/857 - 1 1/8$2.05604MM604MM$2.617 BS7 BS$1.88
7-17-1$1.887-1 1/27-1 1/2$2.467-27-2$3.04
7-2 1/27-2 1/2$3.567-37-3$4.027-3 1/27-3 1/2$4.74
70 - 1 1/270 - 1 1/2$2.4670 - 1 1/470 - 1 1/4$2.147171$0.76