Found my information I needed, but thanks for all your help.-
They are proportions on a mil dot.
You will find that the short line is 1/2 mil from the bottom horizontal line. The shorter line before this one and also the one at the tip of the vertical line are 1/4 mil dot spacings.
Therefore, it is 1 mil spacing between the bottom horizontal line and the start of the thick post so the first shorter line is 1/4 mil spacing, the next longer line is 1/2 mil spacing from horizontal line and the bottom would be 3/4 mil spacing from the bottom horizontal line.