I had read at one time that the mark had to do with a “roughness” in the palm.
I have a condition known as Dupuytren’s Contracture that presents itself as course bumps in the palm at the base of the little finger or ring finger and can eventually contract the fingers toward the palm. I am told it is a genetic disease of people of Northern European descent and is also know as Viking’s Disease.
My two brothers have it also.
I wonder if it’s the
Snider mark.