▁from ▁ 1 8 6 1 , ▁before ▁the ▁standard ▁li very ▁revert ed ▁to ▁green ▁in ▁the ▁following ▁year , ▁and ▁then ▁changed ▁to ▁black ▁from ▁ 1 8 7 3 . ▁ ▁In ▁April ▁ 1 8 6 2 ▁the ▁Southern ▁Division ▁locomot ives ▁were ▁ren umber ed ▁into ▁the ▁all - L N WR ▁series ▁by ▁the ▁addition ▁of ▁ 6 0 0 ▁to ▁each ▁engine ' s ▁number . ▁ ▁A part ▁from ▁two ▁of ▁the ▁ 6   ft ▁ 6 ▁in ▁engines ▁which ▁were ▁scra pped ▁in ▁ 1 8 6 6 , ▁all ▁the ▁Blo om ers ▁were ▁given ▁name plates ▁in ▁ 1 8 7 2 ; ▁the ▁names ▁awarded ▁were ▁of ▁the ▁usual ▁mis cell aneous ▁variety ▁custom ary ▁on ▁the ▁L N WR . ▁ ▁( a ) ▁ 7 ▁ft ▁driving ▁wheel , ▁Blo om ers , ▁known ▁as ▁Lar ge ▁Blo om ers ▁from ▁ 1 8 6 2 . ▁ ▁The ▁design ▁of ▁these ▁was ▁derived ▁from ▁six ▁successful ▁ 2 - 2 - 2 ▁locomot ives ▁supplied ▁to ▁the ▁railway ▁by ▁B ury , ▁Curt is ▁and ▁Kennedy ▁in ▁ 1 8 4 8 . ▁Mc Con nell ▁subst it uted ▁plate ▁frames , ▁provided ▁larger ▁bo ilers ▁and ▁ ▁driving ▁whe els . ▁The ▁first ▁twenty ▁were ▁built ▁by ▁Sh arp , ▁Stewart ▁and ▁Company ▁in ▁ 1 8 5 1 – 1 8 5 3 . ▁A ▁further ▁twenty ▁examples ▁were ▁built ▁in ▁ 1 8 6