Image 1 Base image from BBC ITOW
Image 2 Same photo enlarged caliper registration off little
argument 299:60
ratio 4.98
The caliper measure of the dial is almost exactly 5 times the diameter of the horizontal pipe
argument 299:116
ratio 2.57
argument 93:68
ratio 1.36
The horizontal measure of the telflon wrapped pipe between the top and middle tees and the value of the wide part of the tee fitting is 1.36
argument 178:175
ratio 1.017
The vertical caliper measure of the black plastic handle is 1.017 times the length of the middle tee fitting
argument 93:66
ratio 1.409
The ratio the bottom tee flanges is 1.409