What Was Used Before The Slide Rule?

I used the Slide Rule only in SP. In Secondary Schools, we used what was known as the Logarithm Table. It was a thin book, with a lot of numbers, across rows and columns. You need to located the number you want, say 4 if you want the answer for log 4 (base 10). On that row, you will get the answer. Look at the image below that shows part of a log table for log base 10, and the answer for log 4 is 0.6020600 (top right corner).

The same method was used in the log table for tangent, cosine, sine, etc. I am not sure if a copy can be found in our museum.