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<br /> '~ YEAR TONS Yi?:AR TONS ~~ sLEVATYOP! AT MZDt HEAD
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<br />1888
<br />; 1913. _
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<br /> `l ;' 1889 ~ 192__ 4_t.._,..,.....__ 1
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<br /> :1890: ' ~91~
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<br />~ 19'.6 ~ • DRZFT ~LE,W`ilj -
<br /> !~ 1892 ~ 191*~~ ~~.._......_ / - • '
<br /> .1893 ' ; 19. a .L.--._..._ .._ _ ~ t _~ .~
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<br /> ~1844i 919 ! ,,,,~, ~,.,,,,_„~,~ NAPE, ~ LENriTIi ~ Pi,C1,
<br /> ~! 1845 • :1420: +~ `
<br /> ~,189b : 1921
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<br />]tlnEtha ~~__~ '' 1897 ~
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<br />~„ 1922 r ._...~ .r.____,.; RfiI1R0[u7 AT I[INE ;
<br /> - 1898 i I423 i -..-_
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<br /> ,~ 1899' ' 1924 !
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<br /> ' 1900 .~.~._ 142a~, ~ M. ;~
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<br /> 1903 .
<br />1928 ~ .
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<br /> i19O8' ~ `1933. ',TZ~CKI~:SS OF COVER _~
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<br /> ' 1410 ~ 1935 >f KIND OF ROOF . ~ !
<br /> 1911 s : 193b _
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<br /> ~~ 1912 ~ i 7.937 „~ ESTIMAT~..D LIF3 OF MINE
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