Question….After doing family research and finding my G-G-Grandfather’s 1850 Missouri log cabin, we were able to purchase it, have it dismantled and shipped west. Typically, each notch is scribed (i.e. cut) by hand, or using a template/jog, to create an air-tight seal preventing air infiltration and weatherproofing your log cabin. When the metal siding was removed it was discovered that it had two different notches…some logs were V-notched and some were half-doved tail. Very informative…thanks. When you construct your log cabin, where each two log walls intersect, a notch is scribed to enable the locking of the walls; notches are used to join the corners of your log cabin together.