United States. An Air Service Bombardier Wing, C.1918 certificate_of_authenticity The class designations "Sen'Sho" and

The class designations "Sen'Sho" and "Lo'Sho" were used to distinguish wounds suffered in battle versus wounds of a disability or non-combatant nature

die-hole at the top for uniform attachment

consisting of a tunic constructed of black wool

reverse depicts central five-pointed star with a pebbled finish superimposed on a crossed rifle and sabre

United States. An Air Service Bombardier Wing, C.1918 certificate_of_authenticity The class designations "Sen'Sho" andFour piece construction, in sterling silver, marked "STERLING" in four locations on the reverse, measuring 78. 5 mm x 23. 8 mm, horizontal pinback, extremely fine.