▁station ▁that ▁they ▁served , ▁but ▁occasionally ▁other ▁names . ▁These ▁names ▁were ▁not ▁perman ently ▁assigned ▁to ▁an ▁individual ▁vessel . ▁R ather , ▁whenever ▁a ▁light ship ▁was ▁moved ▁to ▁a ▁new ▁station ▁she ▁took ▁on ▁that ▁name . ▁That ▁made ▁ident ifying ▁individual ▁ships ▁nearly ▁impossible . ▁Begin ning ▁in ▁ 1 8 6 7 , ▁light ship ▁numbers ▁( h ull ▁numbers ) ▁were ▁assigned ▁to ▁ships ▁still ▁in ▁service . ▁These ▁numbers ▁are ▁the ▁primary ▁means ▁of ▁ident ifying ▁individual ▁light ships ▁across ▁her ▁various ▁stations . ▁In ▁ 1 9 3 8 , ▁the ▁L ighth ouse ▁Service ▁retro act ively ▁allocated ▁letter ▁codes ▁to ▁the ▁un number ed ▁light ships ▁based ▁on ▁their ▁research ▁of ▁available ▁records , ▁although ▁some ▁ships ▁may ▁have ▁been ▁lost ▁or ▁mis ident ified . ▁Even ▁with ▁the ▁h ull ▁numbers , ▁it ▁is ▁common ▁to ▁refer ▁to ▁a ▁light ship ▁by ▁the ▁name ▁of ▁the ▁station ▁it ▁serves ▁( or ▁Rel ief , ▁if ▁it ▁is ▁a ▁relief ▁ship ) ▁and ▁a ▁few , ▁such ▁as ▁the ▁N ant uck et ▁I ▁and ▁N ant uck et ▁II ▁have ▁been ▁given ▁individual ▁names . ▁ ▁Light ships ▁ ▁Notes ▁▁ ▁^ ▁A . ▁Name ▁assigned ▁retro act ively ▁in ▁ 1 9 3 8 . ▁During ▁her ▁years ▁in ▁service , ▁this ▁ship ▁was ▁referred ▁to ▁exclus ively ▁by ▁her ▁station ▁name . ▁ ▁^ ▁B . ▁Name / h ull ▁number ▁assigned ▁between ▁ 1 8 6 7 –