The insignia reverse with hallmark '1/20 Silver Filled Krew-GI'. Retaining its two pin posts with clutch-back fittingsRegulation size for wear on uniform tunic or service coatThe Missile Badge is a military decoration of the United States Air Force which was first created on 23 May 1958.The badge recognizes those commissioned officers and enlisted personnel of the US Air Force who have qualified as missile personnel (both TAC and SAC (now AFGSC)) that have been trained in the maintenance or launching of land-based and air-launched nuclear weapons under the direction of the National Command Authority. Originally known as the Missileman Badge, the Missile Badge later became known as the Missileer BadgeCondition: EF