Sample 1:

earlyrh_front earlyrh_backjacket_1_front jacket_2_back jacket_tag

Jacket twill is similar to later issue and arid versions.

Jacket has same cut as arid version.

front_comparison

Pattern shapes are different than shapes on arid season and later, standard version (arid and later have the same shapes):

back_comparison

Sample 2:

pants_1_front pants_2_back pants_tag

Pants twill is rougher, more rigid denim.  Possibly similar to denim battledress overall material.  Ink appears to be sitting on surface like paint, not soaked in; could be why these have a tendency to fade translucently.