Vietnam 36th Engineer Battalion Patch

Here is a Vietnam in country made patch for the 36th Engineer Battalion Construction Bridge Builders and in good condition. 36th Engr Bn (Const) at Vinh Long Airfield, Mekong Delta, South Vietnam, Jan 1971 to Dec 1971. The 36th was under the 34th Engr Group and the 20th Engr Brigade later under Engr Command - Vietnam.