I have a two different slide rules. On one the LL1 scale is like the one your are using. On the other the LL scales have to sets of numbers the one above the line on the LL1 scale starts at 1.0025 and goes up, the numbers below the line starts at 0.997 and goes down.
I have a two different slide rules. On one the LL1 scale is like the one your are using. On the other the LL scales have to sets of numbers the one above the line on the LL1 scale starts at 1.0025 and goes up, the numbers below the line starts at 0.997 and goes down.