, ▁Ster lib as he v sky ▁District , ▁Bash k ort ost an , ▁Russia . ▁The ▁population ▁was ▁ 3 7 3 ▁as ▁of ▁ 2 0 1 0 . ▁There ▁are ▁ 7 ▁streets . ▁ ▁References ▁▁ ▁Category : R ural ▁local ities ▁in ▁Bash k ort ost an ▁Category : R ural ▁local ities ▁in ▁Ster lib as he v sky ▁District <0x0A> </s> ▁The ▁SD ▁ 5 0 ▁( S pr eng b om be ▁Dick wand ig ▁▁ 5 0 ) ▁or ▁thick ▁w alled ▁explos ive ▁bomb ▁in ▁English ▁was ▁a ▁fragment ation ▁bomb ▁used ▁by ▁the ▁Luft wa ffe ▁during ▁World ▁War ▁II . ▁ ▁History ▁ ▁The ▁second ▁most ▁used ▁category ▁of ▁bomb s ▁was ▁the ▁SD ▁series ▁which ▁were ▁high - expl os ive ▁bomb s ▁but ▁with ▁th icker ▁cas ings ▁which ▁meant ▁their ▁charge ▁to ▁weight ▁ratio ▁was ▁only ▁ 3 0 ▁to ▁ 4 0 % ▁of ▁their ▁total ▁weight . ▁ ▁At ▁first ▁glance , ▁they ▁were ▁difficult ▁to ▁distinguish ▁from ▁the ▁SC ▁series ▁of ▁bomb s , ▁but ▁the ▁two ▁series ▁were ▁color - coded ▁the ▁SC ▁series ▁having ▁yellow ▁tail ▁stri pes , ▁while ▁the ▁SD ▁series ▁had ▁red ▁tail ▁stri pes . ▁Bomb s ▁in ▁this ▁series ▁were ▁the ▁SD ▁ 1 , ▁SD ▁ 1 ▁FR Z , ▁SD ▁ 2 , ▁SD ▁ 1 0 ▁A , ▁SD ▁ 1 0 ▁FR Z , ▁SD ▁ 1 0 ▁C , ▁SD ▁ 1