Activated in Pennsylvania NG as 103d Observation Squadron. 103d OS extended federal recognition on 27 Jun 1924. Redesignated 103d Observation Squadron (Medium) on 13 Jan 1942; 103d Observation Squadron on 4 Jul 1942; 103d. Thanks to www.flightlineinsignia.com for the information. Price includes basic economy shipping to most countries, additional fees may incur for Euro, African, South American countries.