Eagle (staff?) button, unmarked back...ID help

[MightyMouse82]

Dug this today on a buddy's farm in south central PA very near CIV activity but can't find any online that have an unmarked back like this one. Any help much appreciated.


Thanks!

 

Amazon Forum Fav 👍

Minelab PRO-FIND 35 Waterproof Pinpointer Metal Detector for Experts with Tone ID & Adjustable Sensitivity - Grab it through Amazon!

[villagenut]

Looks like a self shank, could make it post war.