Was looking at this Scott 1873 adoration-of-the-shepherds stamp.
It was based on a painting by Susie Matthias - An early victim of thalidomide, Theresa Helen "Susie" Matthias of London, Ontario.
It was designed by Kelly Burke and Larry Burke.
There is a missing part of the design on the shepherds hair design.
Not sure if the original painting has the flaw.....Painter below.
Below is the original stamp on left and I added additional beard hair to the right stamp to make it normal.
Original painting defect or design defect...???