▁( M idd les ex ▁Ye oman ry ) ▁Sign al ▁R gt ▁to ▁form ▁ 4 7 ▁( M idd les ex ▁Ye oman ry ) ▁Sign al ▁R gt , ▁later ▁reduced ▁to ▁squad ron ▁status ▁in ▁ 3 1 ▁( City ▁of ▁London ) ▁Sign al ▁Regiment . ▁Its ▁successor ▁unit ▁is ▁today ' s ▁ 3 1 ▁( M idd les ex ▁Ye oman ry ▁and ▁Princess ▁Louise ' s ▁K ens ington ) ▁Sign al ▁S q n ▁in ▁ 7 1 ▁( Y e oman ry ) ▁Sign al ▁Regiment . ▁In ▁ 2 0 1 0 , ▁ 8 3 ▁Support ▁S q n ▁( the ▁former ▁London ▁District ▁Sign als ) ▁of ▁ 3 1 ▁Sign al ▁S q n ▁was ▁renamed ▁ 4 7 ▁Sign al ▁Tro op ▁to ▁perpet uate ▁the ▁unit . ▁The ▁Tro op ▁is ▁based ▁in ▁U x bridge ▁and ▁South fields . ▁ ▁Command ers ▁ ▁Command ing ▁Offic ers ▁The ▁following ▁served ▁as ▁command ing ▁officer ▁of ▁the ▁unit ▁and ▁its ▁success ors : ▁▁ 4 7 th ▁( 2 nd ▁London ) ▁Div is ional ▁Sign als ▁ ▁L t - Col ▁W . F . ▁Bruce , ▁D SO , ▁MC , ▁ 1 9 2 1 ▁ ▁L t - Col ▁T . W . ▁V ig ers , ▁O BE , ▁MC , ▁T D , ▁ 1 9 2 7 ▁ ▁L t - Col ▁H . ▁Lloyd - How ard , ▁MC