need id help

[happymikeyone]

today i went and hunted a really old section of ft ord found a emerald ring (broken off at the bottom) a paratrooper badge 2nd one ive found and a expert riflemans badge dont know if its ww1 or ww2 any help would be appreciated
hh
mike

 

[happymikeyone]

it had an n below the rifles

 

[JARMAN]

HP,Nice ring.Is it cut off on the bottom? can't tell from pic#2. Nice hunt.