Waves curve downward between the pillars on a Lima pillars and waves coin, upwards on Mexican (and Potosi, I believe).
PS: The 14 varieties I referred to above relate to Mexican 4R coins; and these variations are only in the placement of the mint mark, the mint mark itself (but always Mexico City) and the various assayers' initial (G, A, R,S, L and O, for example).
Don.....