how to achieve this bead
This is my first post here and am wondering if someone could set me straight on how to achieve this early panel profile. I think its just a simple 1x10 shiplap board but im not sure how to create the thin bead on the edge. I dont have a bit that would make this. im thinking there probably a bunch of ways to make this happen. so my question is, how would they have made this in the 19th century and whats the best method today?