Scribing is the technique used by handcrafted log home builders to join the alternating courses of logs together. The scriber itself is a protractor with a stylus at one end and a pen or pencil at the other and a bubble level perpendicular to the arms. The scriber transfers the contours of the lower log to the log above with the pen. The builder then has to cut the g… More on this story here.
https://www.eurodita.com/over-scribing-and-why-it-is-crucial-when-building-your-log-cabin/