U.S. Army armor guidon dating the Vietnam War era.
Features a yellow field with the green armor branch insignia at center: a tank above crossed sabers.
From Wikipedia:
"In the United States Armed Forces, a guidon is a military standard or flag that company/battery/troop or platoon-sized detachments carry to signify their unit designation and branch/corps affiliation or the title of the individual who carries it."
Size: 20" x 28"
Shipping: $10. Please allow two weeks for shipping.
Thanks to Cliff for the correction.