Try this

[Ken in Georgia]

A friend of mine found it hunting at the battle of Utoy Creek, I have no clue

 

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[DIGGING1971GUY]

I was with them today ,some more info about the the pin/badge it says WIOSA on it ,hope this helps

 

[skateandcreate]

Looks to me like some sort of police memorial/support pin

 

[Gypsy Heart]

Not sure on the "W"...but the IOSA could be International Oil Scouts Association...founded in 1924