▁of ▁the ▁former ▁Territ orial ▁Force ▁that ▁were ▁ag am ated ▁in ▁ 1 9 2 0 . ▁It ▁provided ▁corps ▁signal ▁units ▁during ▁and ▁after ▁World ▁War ▁II . ▁Following ▁a ▁series ▁of ▁post war ▁mer gers ▁Its ▁success ors ▁continue ▁in ▁the ▁Army ▁Reserve ▁today . ▁ ▁Origin ▁When ▁the ▁Royal ▁Corps ▁of ▁Sign als ▁( R CS ) ▁was ▁created ▁in ▁ 1 9 2 0 ▁the ▁ 4 7 th ▁( 2 nd ▁London ) ▁Div is ional ▁Sign als ▁was ▁formed ▁in ▁the ▁Territ orial ▁Army ▁( TA ). ▁It ▁combined ▁the ▁former ▁ 4 7 th ▁( 2 nd ▁London ) ▁Sign al ▁Company ▁of ▁the ▁Royal ▁Engine ers ▁( RE ) ▁with ▁the ▁ 2 5 th ▁( Count y ▁of ▁London ) ▁Cy cl ist ▁Battalion ▁of ▁the ▁London ▁Regiment . ▁ ▁Sign al ▁Company ▁ ▁When ▁the ▁old ▁Vol unte er ▁Force ▁was ▁sub sum ed ▁into ▁the ▁Territ orial ▁Force ▁( TF ) ▁after ▁the ▁H ald ane ▁re forms ▁in ▁ 1 9 0 8 , ▁the ▁ 1 st ▁M idd les ex ▁Royal ▁Engine ers ▁( Vol unte ers ) ▁provided ▁the ▁RE ▁components ▁of ▁the ▁T F ' s ▁ 2 nd ▁London ▁Division , ▁including ▁the ▁ 2 nd ▁London ▁Div is ional ▁Te legraph ▁Company , ▁RE , ▁with ▁the ▁following ▁organisation : ▁ ▁Company ▁H Q ▁at ▁Duke ▁of ▁York ' s ▁Head quarters , ▁Ch else a ▁ ▁No ▁ 1 ▁Section , ▁Duke ▁of