▁& ▁St ett in ▁was ▁shut ▁down ▁again . ▁On ▁April ▁ 9 ▁of ▁that ▁same ▁year , ▁it ▁de - register ed ▁all ▁of ▁its ▁min ers . ▁The ▁day ▁office ▁was ▁then ▁closed ▁and ▁its ▁t unn els ▁were ▁filled ▁with ▁water . ▁After ▁World ▁War ▁II ▁a ▁second , ▁smaller ▁mine ▁named ▁Ze che ▁Ne ug l ück ▁II ▁for ▁deep ▁extra ction ▁would ▁be ▁in ▁operation ▁for ▁a ▁few ▁years . ▁ ▁Development ▁and ▁Work force ▁ ▁The ▁first ▁financial ▁figures ▁were ▁from ▁ 1 8 3 0 , ▁which ▁provided ▁fund ing ▁for ▁ 1 8 3 6 ▁tons ▁of ▁Bit umin ous ▁coal . ▁In ▁ 1 8 3 5 ▁the ▁mine ▁was ▁then ▁able ▁to ▁develop ▁ 2 5 1 4 ▁tons ▁of ▁coal . ▁In ▁ 1 8 4 0 , ▁this ▁amount ▁increased ▁to ▁ 3 2 1 6 ▁tons . ▁The ▁first ▁work force ▁survey ▁was ▁in ▁ 1 8 4 5 , ▁where ▁between ▁ 9 ▁and ▁ 1 6 ▁min ers ▁were ▁counted , ▁and ▁fund ing ▁was ▁provided ▁for ▁the ▁extra ction ▁of ▁ 3 6 , 0 2 4 ▁bush els ▁of ▁coal . ▁In ▁ 1 8 4 7 ▁there ▁were ▁between ▁eight ▁and ▁tw el ce ▁min ers ▁in ▁the ▁mine ▁and ▁the ▁fund ing ▁allowed ▁for ▁the ▁extra ction ▁of ▁ 3 1 , 6 7 2 ▁bush els ▁of ▁coal . ▁In ▁ 1 9 2 6 ▁the ▁fund ing ▁then ▁allowed ▁for ▁ 2