TR  / IC-7525 <br/>
D. W. Butner <br/>
       Method and cost of driving the rock creek funnel hecla mining co. shoshone county,Idaho 
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<br><U>Copy Details:</u><br> Acc. No.: <b>TR5219</b>, Full Call No.: TR IC-7525,   Item type:  Technical Report , Location: General Stacks, <br><b>------------------------- --------------------- ------ --------- ------- ------- --------- -------- </b><br>