Vintage Vietnam War MIA Only Hanoi Knows Pinback Button Patriotic USA Flag

This vintage Vietnam War era “MIA Only Hanoi Knows” pinback button is a powerful piece of American history and patriotism. Featuring a bold red, white, and blue flag-style design, this button was part of the POW/MIA awareness movement calling for accountability of soldiers missing in action during the Vietnam War. A must-have collectible for vintage political memorabilia collectors, Vietnam War historians, or anyone interested in patriotic protest buttons from the 1960s–1970s era. Approximate size shown next to U.S. quarter for scale. Pinback clasp is intact and functional. Condition: See Photos Vietnam War pin, MIA button, POW MIA memorabilia, protest pinback, vintage political button, 1960s activism pin, patriotic collectible, American history memorabilia, Vietnam veteran pin, USA flag button, freedom awareness pin You!