See post 30: political leaders did not wear alu and golden piping.
Normally political leaders field-caps do have a piping at the edge
of the flap, as well as at the crown! See post 41 as this is such a
cap.
By the way: it is very difficult to find descriptions for field-caps
for political leaders. They were hardly mentioned in regulations.
A lot of research on behalf of this, needs to be done! An actual
document or so can give a final solution.