▁( 1 7 5 5 ) ▁– ▁receiving ▁ship ▁ 1 7 8 7 , ▁broken ▁up ▁ 1 8 1 1 ▁ ▁York ▁ 6 0 ▁( 1 7 5 3 ) ▁– ▁broken ▁up ▁ 1 7 7 2 ▁ ▁Four th ▁rates ▁of ▁ 5 0 ▁guns ▁Ass istance ▁ 5 0 ▁( 1 7 4 7 ) ▁– ▁sold ▁ 1 7 7 3 . ▁ ▁Green wich ▁ 5 0 ▁( 1 7 4 7 ) ▁– ▁captured ▁by ▁France ▁ 1 7 5 7 . ▁ ▁T av ist ock ▁ 5 0 ▁( 1 7 4 7 ) ▁– ▁h ul ked ▁ 1 7 6 1 , ▁broken ▁up ▁ 1 7 6 8 . ▁ ▁Fal mouth ▁ 5 0 ▁( 1 7 5 2 ) ▁– ▁abandoned ▁a ground ▁ 1 7 6 5 . ▁ ▁New castle ▁ 5 0 ▁( 1 7 5 0 ) ▁– ▁w reck ed ▁ 1 7 6 1 . ▁ ▁D art mouth ▁ 5 0 ▁(- ) ▁– ▁cancel led ▁ 1 7 4 8 . ▁ ▁Se vern ▁ 5 0 ▁( 1 7 4 7 ) ▁– ▁sold ▁ 1 7 5 9 . ▁ ▁W ool wich ▁ 5 0 ▁(- ) ▁– ▁cancel led ▁ 1 7 4 8 . ▁▁ 1 7 4 5 ▁Est ab lish ment , ▁as ▁am ended ▁in ▁ 1 7 5 0 ▁ ▁Second ▁rates ▁of ▁ 9 0 ▁guns ▁Nam ur ▁