Show vit AW V A 46 01 V 44 0 U j model 39 waugh stoper 0 alel east por portal 1 the main bore of the moffat tunnel east portal is now in in feet all of the upper enlargement to date has been made with the model 39 waugh stoper the headings in the east portal are now being driven with the model 17 waugh drifter on account of its speed power and general Aci ency it is displacing other drills for this gruelling gruenling gru elling work ta R RK D R NJ vy er A S 0 cv K K DW AE I 1 21 U JI FAR 1 DENVER COLORADO branch offices and stocks dinall in all important centers |