▁Bo el cke , ▁and ▁then ▁went ▁to ▁Jag dst aff el ▁ 5 ▁on ▁ 1 0 ▁June ▁ 1 9 1 7 . ▁He ▁served ▁as ▁a ▁V ize feld web el , ▁along ▁with ▁Josef ▁Mai ▁and ▁Otto ▁K ön ne cke , ▁as ▁one ▁of ▁the ▁three ▁N CO ▁pil ots ▁who ▁fle w ▁together ▁and ▁scored ▁ 4 0 % ▁of ▁the ▁squad ron ' s ▁success es , ▁and ▁were ▁known ▁as ▁" The ▁Golden ▁Tri um vir ate ". ▁His ▁personal ▁mark ing ▁on ▁the ▁aircraft ▁he ▁used ▁was ▁a ▁demon ' s ▁head . ▁ ▁Rum ey ' s ▁first ▁victim ▁was ▁a ▁British ▁observation ▁bal lo on , ▁fl amed ▁on ▁July ▁ 6 , ▁ 1 9 1 7 . ▁His ▁third ▁was ▁over ▁British ▁ace ▁Captain ▁Ger ald ▁Cro le ▁( 5 ▁vict ories ) ▁of ▁ 4 3 ▁Squadron , ▁who ▁was ▁taken ▁prisoner . ▁Rum ey ▁was ▁wounded ▁on ▁ 2 5 ▁August ▁ 1 9 1 7 , ▁and ▁again ▁on ▁ 2 4 ▁September . ▁By ▁year ' s ▁end ▁he ▁was ▁cred ited ▁with ▁five ▁vict ories . ▁ ▁Rum ey ▁continued ▁to ▁acc r ue ▁single ▁vict ories ▁throughout ▁the ▁first ▁half ▁of ▁ 1 9 1 8 . ▁He ▁killed ▁ ▁ace ▁L t . ▁James ▁Da we ▁( 8 ▁vict ories ) ▁of ▁No . ▁ 2 4 ▁Squadron ▁on ▁ 7 ▁June ▁ 1 9 1 8 , ▁for ▁his ▁ 2 3